https://www.ipd.gov.hk/en/ip-overview/ip-in-hong-kong/index.html
The above link will provide you with information on various types of intellectual property rights, including trademarks, patents, registered designs, copyright, layout-designs (typographies) of integrated circuits, plant variety rights.
Trademarks
Trade Descriptions
Patents
Designs
Copyright
Layout-Designs (Topographies) of Integrated Circuits
Plant Variety Rights
Alternatively, you may go to the following website to look for any intellectual property related legislation (https://www.elegislation.gov.hk)
Court's decisions
http://www.judiciary.gov.hk/en/legal_ref/judgments.htm
(This is the website of the Judiciary of Hong Kong SAR. You may search for courts’ judgements concerning intellectual property posted online.)
Registrar's decisions under the old Trade Marks Ordinance (Cap.43)
https://www.ipd.gov.hk/en/trade-marks/trade-mark-hearings/cap43/index.html
(This link provides the trademarks decisions, posted online, made by the Registrar of Trade Marks under the old Trade Marks Ordinance, Cap.43)
Registrar's decisions under the new Trade Marks Ordinance (Cap.559)
https://www.ipd.gov.hk/en/trade-marks/trade-mark-hearings/cap559/index.html
(This link provides the trademarks decisions, posted online, made by the Registrar of Trade Marks under the new Trade Marks Ordinance, Cap.559)
(The links will provide you with answers to some frequently asked questions related to intellectual property.)