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Filing requirements for short-term patent application

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1.What is the requirement for obtaining a date of filing for my short-term patent application?

The Registrar will accord a date of filing to your short-term patent application if your application contains the following 3 elements—

  1. an indication that a short-term patent is sought;
  2. information identifying the applicant, such as the name and address of the applicant; and
  3. (i) something that appears to be a description of an invention; or
    (ii) a reference to an earlier specified patent application in the form of a statement in Part 07 of Form P6 to indicate that the description and drawings of your present short-term patent application are wholly contained in the earlier specified patent application.
2.What is the time limit for correcting the deficiencies on the requirement for according a date of filing?

The time limit for a short-term patent applicant to correct the deficiencies on the requirement for according a date of filing, if any, is a non-extendible period of 2 months after the date of the Registrar’s notice which notifies the applicant of the deficiencies.

3.What are the formal requirements of a short-term patent application?

After according the date of filing to a short-term patent application, the Registrar must examine the application to ascertain whether the application complies with the formal requirements under the patent legislation in order to ensure that the application is in order for publication.

When examining the formal requirements, the Registrar will check whether a short-term patent application—

  1. is filed in the specified form (Form P6) in the applicant’s chosen language of proceedings either in English or Chinese and signed by the applicant (Part 16 of Form P6);
  2. contains an abstract in English and Chinese;
  3. contains a specification in the language of proceedings with a title of invention, a description of the invention, at least one claim, and any drawing referred to in the description;
  4. contains a list of the necessary documents in support of the application, with the number of sheets of each individual document indicated (Part 13 of Form P6);
  5. provides the name and address of the applicant as well as the name of the inventor (Parts 02 and 10 of Form P6);
  6. specifies an address in Hong Kong for service of documents (Part 14 of Form P6);
  7. has more than 2 independent claims (Part 04 of Form P6);
  8. (if the applicant is not an inventor) provides the last known address of each inventor and an inventorship statement (Form P6A);
  9. (if priority right is claimed) contains a statement of priority (Part 09 of Form P6) and the priority document;
  10. (if a reference to an earlier specified patent application is made) contains a copy of the earlier specified patent application and a copy of the certificate issued by the authority which received that application;
  11. (if non-prejudicial disclosure is claimed) contains the statement about the claim and supporting evidence (in the form of statutory declaration) (Part 11 of Form P6);
  12. (if the invention requires the use of a micro-organism for performance of the invention) contains information on the availability of samples of the micro-organism to the public (Part 05 of Form P6);
  13. (for inventions involving nucleotide and amino acid sequences) contains a sequence listing as a part of the description in the specification;
  14. (if any filing document is not entirely in the language of proceedings either in English or Chinese) contains a translation of such document in the language of the proceedings; and
  15. contains a search report in relations to the invention.
4.What else do I need to do if I have made reference to an earlier specified application at the time of filing my short-term patent application?

If you have made reference to an earlier specified application at the time of filing the application, you must file the following documents within 4 months after the date on which the requirement for according a date of filing is complied with —

  1. a copy of the earlier specified application; and
  2. a copy of the certificate issued by the authority that received the earlier specified application.

And if the earlier specified application and the certificate issued by the authority that received the earlier specified application are not in English or in Chinese, you must also file—

  1. within 4 months after the date on which the requirement for according a date of filing is complied with, a translation of the earlier specified application in the language of the proceedings or (where applicable) a statement made by the translator verifying to the satisfaction of the Registrar that the translation of the specification is complete and accurate; and
  2. a translation of the certificate in the language of the proceedings.
5.How do I claim priority for my short-term patent application?

Claiming priority based on a previous Hong Kong application

An earlier short-term patent application or standard patent (O) application can serve as a basis for claiming priority for a subsequently filed (within 12 months after the date of filing of the previous application) short-term patent application as long as—

  • the previous and the subsequent patent applications are filed by the same applicant; or
  • the short-term patent applicant is the successor in title of the applicant of the previous application.

In this case, the applicant does not need to file the supporting priority documents i.e. a copy of the previous application and a copy of the certificate issued by the authority that received the previous application and that states the date of filing of the previous application. However, a statement of priority is still required to be filed within 16 months (non- extendible) after the earliest date of priority claimed (please also refer to the question below).

Claiming priority based on a previous non-Hong Kong application

Where an applicant of a short-term patent application (within 12 months after the date of filing the previous application) seeks to claim priority of an earlier patent application filed in or for any Paris Convention country or WTO member outside Hong Kong (previous non-Hong Kong application), the following documents may be filed with the Registrar within 16 months (non-extendible) after the earliest date of priority claimed (provided that the statement of priority is accompanied by payment of the official fee and the preparations for publication of the short-term patent have not been completed):

  • a statement of priority;
  • a copy of the previous non-Hong Kong application; and
  • a copy of the certificate issued by the authority that received the previous non-Hong Kong application and that states the date of filing of the previous non-Hong Kong application.

Please also refer to the question below.

6.If I omitted to make a priority claim at the time of filing my short-term patent application, can I add such claim to the application afterwards? If so, how do I make such priority claim and what is the time limit for doing so?

If your short-term patent application is filed within 12 months from the date of filing of the previous application, you may still make such priority claim within 16 months (non-extendible) after the priority date by filing the statement of priority in Form OP5 aand the supporting priority documents with payment of the official fee provided that the preparations for publication of your applied for short-term patent have not been completed.

7.If I intended to file a short-term patent application with a priority claim, but omitted to file such application within the 12-month priority period, can I file the application with such priority claim afterwards? If so, how and when?

You may file your short-term patent application and also an application for restoration of priority right.

The restoration application should be filed in Form OP5 before the earlier of the following—

  1. within 14 months (non-extendible) from the date of filing of your previous application;
  2. the date on which the preparations for publication of your subsequent short-term patent are completed.

The restoration application must be accompanied by:

  • a statement of priority including the date of filing, the application number and the country, territory or area in or for which the previous application was made;
  • evidence to establish the reason for your failure to file your short-term patent application with the priority claim timely before the expiry of the original deadline and also to satisfy the Registrar that you have taken all reasonable care required by the circumstances; and
  • the official fee.
8.If I find that certain parts of the description or drawings in the specification of my short-term patent application have not been filed with my patent application, can I still subsequently file such missing parts? If so, what is the time limit to do so, and does my filing of those missing parts have any effect on my application?

You may file the missing description or drawings for your short-term patent application within 2 months (extendible, upon your request to the Registrar, for 2 months) after the accorded date of filing of the application. If the Registrar identifies the missing parts, the Registrar may notify you of the requirement on filing the same. In that case, you may file the missing parts within 2 months from the date of such notice (extendible, upon request to the Registrar, for 2 months).

Please however note that your filing of the missing description or drawings will cause a change of the accorded date of filing of your short-term patent application to the date on which the missing materials are filed, unless

  • you have claimed priority of a previous application for your short-term patent application;
  • the missing description or drawings is/are completely contained in the previous application;
  • you have requested that the accorded date of filing of your short-term patent application remains unchanged; and
  • you have filed a copy of the previous application and a statement indicating the location of the missing description or drawing in the previous application within 16 months after the earliest date of priority claimed (the translations of these documents should also be filed within a certain period if they are not in one of the official languages).
9.If the previous application that contains the missing description or drawing is not in one of the official languages (i.e. English or Chinese), what is the time limit for me to provide the translation?

The time limit is the same as that for standard patent (O) applications.

Post-grant substantive examination of a short-term patent

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1.Is substantive examination mandatory for grant of a short-term patent?

No.It remains the case that a short-term patent is granted upon formality examination of the patent application.

That said, the patent proprietor or any other person having reasonable grounds or legitimate interest may request the Registrar to conduct post-grant substantive examination of the patent concerned for determining its validity.

2.Who can request the Registrar to conduct substantive examination of a short-term patent and how can such request be made?

A request for substantive examination of a short-term patent may be filed with the Registrar by—

  • the patent proprietor; or
  • any other person who satisfies the Registrar that—

    1. there are reasonable grounds to suspect that the underlying invention is not patentable; or
    2. it would be reasonable for conducting the examination because of the person’s legitimate business interests.

A request for substantive examination of a short-term patent must be filed in Form OP4 accompanied by payment of the official fee.

3.When is the proprietor of a short-term patent required to request substantive examination of the patent?

A short-term patent proprietor must request the Registrar to conduct substantive examination of the patent before commencing court proceedings for enforcement of the patent rights.

4.If I seek to commence court proceedings to enforce my short-term patent granted before 19 December 2019, do I still need to request the Registrar to conduct substantive examination of my patent before commencing such proceedings?

Yes, filing a request to the Registrar for substantive examination of a short-term patent granted before 19 December 2019 is a pre-condition for commencing enforcement proceedings on or after the said date.

5.What is the time limit for requesting the Registrar to conduct substantive examination of a short-term patent?

A request for substantive examination of a short-term patent may be filed with the Registrar at any time after the patent grant. However, the Registrar will not entertain such request concerning a short-term patent when—

  • a previous request for substantive examination of the patent has been made and the examination outcome is still pending;
  • a certificate of substantive examination for the patent has been issued by the Registrar as a result of a previous request for substantive examination of the patent;
  • the patent has been revoked by the Registrar as a result of a previous request for substantive examination of the patent; or
  • the patent has been found by the court to be wholly valid.
6.What requirements of a short-term patent will be examined during substantive examination? What will the Registrar do if the patent does not comply with any of these requirements?

During the substantive examination of a short-term patent, the Registrar will mainly examine the patent and consider any requested amendment to determine whether the patent, together with the amendment (if allowed), complies with all of the following requirements

  • the underlying invention is new, involves an inventive step, and is susceptible of industrial application;
  • the underlying invention does not fall within the subject matters that have been excluded from patentability;
  • the specification of the patent discloses the invention in a manner sufficiently clear and complete for it to be performed by a person skilled in the art;
  • the specification provides for not more than 2 independent claims;
  • the claims contained in the specification define the matter for which protection is sought or given, are clear and concise, are supported by the description in the specification, and relate to a single inventive concept;
  • the matter disclosed in the specification of the patent does not extend beyond that disclosed in the patent application as filed;
  • if the subject short-term patent is derived from a divisional application, or a replacement application by a court order, the matter disclosed in the specification of the subject patent does not extend beyond that disclosed in the earlier (parent) patent application as filed;
  • the protection conferred by the patent has not been extended by any amendment to its specification;
  • the patent is not one of two patents that are granted for the same invention made by the same inventor, and that have the same date of filing or priority date;
  • if priority is claimed, and if any prior art which is filed or published between the claimed priority date and date of filing of the patent application is found, that the subject short-term patent is entitled to the priority right.
7.What will happen after the Registrar is requested to conduct substantive examination of my short-term patent? What is the time limit for responding to an examination notice issued by the Registrar?

If the Registrar is of the opinion that your short-term patent, together with any requested amendment, does not comply with any of the examination requirements, the Registrar will issue an examination notice which sets out the Registrar's opinion with reasons.

You may respond to an examination notice in writing to address the Registrar’s opinion by filing—

  • a written representation to establish that your patent complies with the relevant examination requirement(s) as mentioned in the examination notice; and/or
  • a request to amend the specification of your patent by filing Form OP7 to enable your patent to comply with the relevant examination requirement(s) as mentioned in the examination notice.

The time limit for you to file your written response to the examination notice is 2 months (extendible once for 1 month by filing Form SP3 with payment of the extension fee) after the date of the examination notice.

Your patent will be provisionally revoked should you fail to timely file your written response to the examination notice.

8.Will the Registrar issue any further office action after I have timely filed my written response to the examination notice? What is the time limit for responding to such further office action?

If the Registrar, having considered your written response to the examination notice, is of the opinion that elaboration, revision or clarification of any matter covered in your written response is required, the Registrar will issue a further examination notice setting out such matter.

You may respond to the further examination notice in writing to address the Registrar’s opinion by filing—

  • a written representation to establish that your patent complies with the relevant examination requirement(s) as mentioned in the further examination notice; and/or
  • a request to amend the specification of your patent by filing Patents Form OP7 to enable your patent to comply with the relevant examination requirement(s) as mentioned in the further examination notice.

The time limit for you to file your written response to the further examination notice is 2 months (extendible once for 1 month by filing Form SP3 with payment of the extension fee) after the date of the further examination notice.

Your patent will be provisionally revoked should you fail to timely file your written response to the further examination notice.

9.What are the possible results of substantive examination of a short-term patent?

The substantive examination of a short-term patent will result in either—

  1. (if the Registrar is satisfied that the patent complies with the examination requirements) issuance of a certificate of substantive examination by the Registrar; or
  2. revocation of the patent.
10.How many further examination notices will be issued by the Registrar when the Registrar conducts post-grant substantive examination of my short-term patent?

While the Registrar is empowered to issue multiple further examination notices for affording you ample opportunities to elaborate, revise or clarify any matter covered in your response to an examination notice or a further examination notice, the number of further examination notices varies from case to case. For example, if the Registrar, having considered your written response to the examination notice and your response to a further examination notice (if any), is of the opinion that your short-term patent does not comply with the examination requirement concerned and that there is no reasonable prospect for you to overcome the objection(s) by making any elaboration, revision or clarification of any matter, the Registrar will proceed with issuing a provisional revocation notice.

11.What can I do if I disagree with the Registrar’s provisional decision of revocation of my short-term patent?

You may file with the Registrar a request to review (in Form OP3) the Registrar’s provisional decision of revocation together with the official fee. Your request to review may contain the following—

  • a written representation to establish that your patent complies with the relevant examination requirement(s) as mentioned in the provisional refusal notice; and/or
  • a request to amend the specification of your patent by filing Form OP7 to enable your patent to comply with the relevant examination requirement(s) as mentioned in the provisional refusal notice.

The time limit to file a request to review is 2 months (extendible once for 1 month by filing Form SP3 with payment of the extension fee) after the date of the Registrar’s provisional revocation notice.

If you fail to timely file a request to review the Registrar’s provisional decision of revocation with payment of the official fee, the Registrar will issue a final revocation notice.

12.Will the Registrar issue any office action after I have filed a request to review the Registrar’s provisional revocation notice? What is the time limit for responding to such office action?

If the Registrar, having considered your request to review, is of the opinion that your short-term patent still does not comply with any examination requirement as identified in the Registrar’s provisional revocation notice, the Registrar will inform you by a review opinion with reasons. Depending on the individual circumstances, the Registrar may also afford you an opportunity to request a hearing.

You may respond to the review opinion by filing—

  • a written representation to establish that your patent complies with the relevant examination requirement(s) as mentioned in the review opinion; and/or
  • a request to amend the specification of your patent on Form OP7 to enable your patent to comply with the relevant examination requirement(s) as mentioned in the review opinion.

Where the Registrar has, in the review opinion, afforded you an opportunity to request a hearing, you may, in addition to, or as an alternative to filing your response to the review opinion in the aforesaid manner, file a request for hearing by filing Form OP6 together with payment of the official fee.

The time limit to file a written response to the Registrar’s review opinion or a request for hearing (if applicable) is 2 months (extendible once for 1 month by filing Form SP3 with payment of extension fee) after the date of the review opinion. The extension request for filing a request for hearing may be filed before the expiry of the initial deadline, but the extension request for filing a written response may be filed within 1 month after the expiry of the initial deadline.

If you fail to timely respond to a review opinion and pay the applicable official fee (if any), the Registrar will issue a final revocation notice.

13.Will the Registrar issue further office action after I have timely responded to the review opinion? What is the time limit for responding to such further office action?

If the Registrar, having considered your request to review, your written response to the review opinion, and also having held the hearing as requested by you (if any), is of the opinion that elaboration, revision or clarification of any matter covered in your written response and/or the hearing (if any) is required, the Registrar will issue a further review opinion setting out such matter. Depending on the individual circumstances, the Registrar may also afford you an opportunity to request a hearing.

You may respond to the further review opinion by filing—

  • a written representation to establish that your patent complies with the relevant examination requirement(s) as mentioned in the further review opinion; and/or
  • a request to amend the specification of your patent by filing Form OP7 to enable your patent to comply with the relevant examination requirement(s) as mentioned in the further review opinion.

Where the Registrar has, in the further review opinion, afforded you an opportunity to request a hearing, you may, in addition to, or as an alternative to filing your response to the further review opinion in the aforesaid manner, file a request for hearing by filing Form OP6 together with payment of the official fee.

The time limit to file a written response to the Registrar’s further review opinion or a request for hearing (if applicable) is 2 months (extendible once for 1 month by filing Form SP3 with payment of extension fee) after the date of the further review opinion. The extension request for filing a request for hearing may be filed before the expiry of the initial deadline, but the extension request for filing a written response may be filed within 1 month after the expiry of the initial deadline.

If you fail to timely respond to a further review opinion and pay the applicable official fee (if any), the Registrar will issue a final revocation notice.

14.How many further review opinions will be issued by the Registrar when the Registrar conducts post-grant substantive examination of my short-term patent?

While the Registrar is empowered to issue multiple further review opinions for affording you ample opportunities to elaborate, revise or clarify any matter covered in your response to a review opinion/a further review opinion or at the hearing as requested by you (if any), the number of further review opinions varies from case to case. For example, if the Registrar, having considered your request to review, your response to the review opinion, your response to a further review opinion (if any), and also having held the hearing as requested by you (if any), is of the opinion that your short-term patent does not comply with the examination requirement concerned, and that there is no reasonable prospect for you to overcome the objection(s) concerned by making any elaboration, revision or clarification of any matter, the Registrar will proceed with issuing a final revocation notice.

15.What will happen if my response to an office action raised at any stage of post-grant substantive examination of my short-term patent has overcome the objection(s) raised in such office action?

If the Registrar is of the opinion that your response to an office action concerning an examination requirement in your short-term patent has overcome such objection(s), the Registrar will continue to carry out the substantive examination of your patent to ensure that your patent complies with all examination requirements.

Where the Registrar is of the opinion that your patent does not comply with any other examination requirement(s), the Registrar will issue another examination notice setting out the Registrar’s opinion with reasons, and you will be given time to address the objection(s) in such office action.

On the other hand, if the Registrar is ultimately of the opinion that your short-term patent, together with any amendment allowed, complies with all the examination requirements, the Registrar will issue a certificate of substantive examination in respect of your patent.

16.What can I do if I disagree with the Registrar’s final decision to revoke my short-term patent?

You may file an appeal to the Court of First Instance against the Registrar’s final decision to revoke your short-term patent.

17.What if I have missed a deadline for responding to an office action during substantive examination of my short-term patent (e.g. by filing a written response to an examination notice or a further examination notice, a request to review, a written response to a review opinion or a further review opinion)?

You can still request a time extension for 1 month by filing Form SP3 with payment of the official fee within 1 month after expiry of the original deadline.

18.During substantive examination of a short-term patent, how does the Registrar deal with a requested amendment to the patent specification filed in response to an office action? Can a third party oppose an allowable amendment? If so, how and when?

If the Registrar, having regard to all examination requirements and also any response filed by a short-term patent proprietor to overcome the objections raised by the Registrar, accepts the requested amendment to the patent specification in whole or in part as an allowable amendment, the Registrar must publish the allowable amendment and advertise the fact of the publication by notice in the official journal.

Any person who intends to oppose the allowable amendment published by the Registrar must file with the Registrar an opposition notice in Form P2 together with payment of the official fee within 1 month (extendible for 1 month with the official fee) from the date of the Registrar’s notice in the official journal. The opposition notice must be accompanied by a statement setting out fully the facts on which the opponent relies and the relief sought.

Some important time limits for post-grant substantive examination of short-term patents

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What are some of the important time limits for post-grant substantive examination of short-term patents?

Here are certain key time limits for addressing office actions concerning substantive examination of short-term patents—

Actions to be completed Time limits Extendible? When to file a request for time extension (only for those extendible time limits) Section Nos. of PGR
Filing a response to an examination notice Within 2 months after the date of the notice Yes (1 month only) Within 1 month after the expiry of the initial time limit 81E(1), 100AAB, Part 3 of Schedule 4
Filing a response to a further examination notice Within 2 months after the date of the notice Yes (1 month only) Within 1 month after the expiry of the initial time limit 81G(1), 100AAB, Part 3 of Schedule 4
Filing a request to review in response to a provisional revocation notice Within 2 months after the date of the notice Yes (1 month only) Within 1 month after the expiry of the initial time limit 81I(1), 100AAB, Part 3 of Schedule 4
Filing a response to a review opinion Within 2 months after the date of the opinion Yes (1 month only) Within 1 month after the expiry of the initial time limit 81K(1), 100AAB, Part 3 of Schedule 4
Filing a request for hearing in response to a review opinion (if applicable) Within 2 months after the date of the opinion Yes (1 month only) Before the expiry of the initial time limit 81K(2), 82(2)(c), 100AAB, Part 2 of Schedule 4
Filing a response to a further review opinion Within 2 months after the date of the opinion Yes (1 month only) Within 1 month after the expiry of the initial time limit 81M(1), 100AAB, Part 3 of Schedule 4
Filing a request for hearing in response to a further review opinion (if applicable) Within 2 months after the date of the opinion Yes (1 month only) Before the expiry of the initial time limit 81M(2), 82(2)(d), 100AAB, Part 2 of Schedule 4

Other matters in relation to a short-term patent

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1.Can anyone make observations on the patentability of an invention for which a short-term patent has been granted to challenge the validity of the patent?

At any time after a short-term patent is granted and published, any person may file with the Registrar a written notice setting out—

  1. the person’s observations on the patentability of the invention in question; and
  2. the grounds on which the observations are based.

The Registrar however will not entertain the filing of observations on a short-term patent in any of the following circumstances—

  • the post-grant substantive examination of the patent (if any) has been completed;
  • the patent has expired; or
  • the patent has been found to be wholly valid by the court in any validity proceedings.

Upon receipt of the notice containing observations on a short-term patent, the Registrar will as soon as practicable, send a copy of the notice to the patent proprietor.

Filing a notice containing observations on a short-term patent on its own does not amount to a challenge of the validity of the patent. In fact, a person filing such notice does not become a party to any proceedings in relation to the short-term patent concerned. Such notice will only be considered by the Registrar after the Registrar has been requested to conduct post-grant substantive examination of the patent for determining the patent validity.

2.Can I amend the specification of my short-term patent after I have obtained a certificate of substantive examination concerning my patent as issued by the Registrar? Can a third party oppose the allowable amendment made to the specification of my patent? If so, how and when?

Yes, the application to amend the specification has to be made to the Registrar or the Court of First Instance. The procedure is in essence the same as that for seeking an amendment of the specification of a standard patent (O).