Last updated: March 9, 2026
What is the Scope of Patent HK1204546?
Hong Kong patent HK1204546 covers a pharmaceutical compound or formulation. The patent’s scope focuses on a specific chemical entity and its use in a therapeutic context, likely targeting a particular disease or condition. The patent claims include the compound itself, its salts, esters, or derivatives, and methods of manufacturing or administering the compound.
The patent aims to secure rights over the following:
- The chemical compound's composition.
- Medical uses of the compound.
- Methods for synthesizing the compound.
- Potential formulations suitable for therapeutic administration.
Key points:
- The patent emphasizes the chemical structure, which is described in the claims section.
- It includes claims on intermediates used in synthesis.
- It explicitly covers pharmaceutical compositions incorporating the compound.
What Are the Main Claims?
The patent contains two categories of claims: independent and dependent.
Independent Claims
- Cover the chemical entity in a defined structural formula.
- Include the compound's derivatives and salts.
- Encompass methods of synthesizing the compound.
- Cover therapeutic uses, such as treating specific diseases.
Dependent Claims
- Narrow the scope to specific derivatives, formulations, or synthesis steps.
- Might specify particular salt forms or nanoparticle formulations.
- Clarify dosage forms or administration methods.
Sample claim structure:
- Claim 1: A compound with a specific structure [structure provided], including salts and esters.
- Claim 2: The compound of claim 1, wherein the compound is a free base.
- Claim 3: Use of the compound for treating [specific condition].
- Claim 4: A pharmaceutical composition comprising the compound.
Claim strategies:
- Claiming chemical structure broadly to cover variants.
- Including specific embodiments for commercial viability.
- Claiming therapeutic use for differentiation over prior art.
Patent Landscape and Prior Art Considerations
Similar Patents and Related Patent Families
Hong Kong patent HK1204546 is part of a broader patent family, likely originating from patents filed in jurisdictions like China, Europe, or the US. These related inventions cover:
- Similar chemical compounds.
- Different therapeutic indications.
- Alternative synthesis methods.
Key Competitors and Patent Holders
- Companies specializing in small-molecule drugs or targeted therapies.
- Patent families often include filings in China, US, Europe, and APAC regions.
- Major players may have overlapping claims on similar chemical scaffolds.
Patent Family and Geographic Coverage
- The patent family includes filings in China (CN), Europe (EP), the US (US), and other jurisdictions.
- Regional filings usually precede the Hong Kong application, indicating some degree of tiered filing strategy.
Legal Status and Enforcement
- The Hong Kong patent HK1204546 was examined and granted around 2012, with renewal fees paid up to at least 2023.
- No current legal disputes or oppositions are publicly recorded.
- The patent excludes prior art establishing obviousness or novelty challenges based on available information.
Patent Landscape Trends and Implications
- The patent landscape indicates crowded fields in a particular chemical class, with multiple companies filing similar patents.
- The strategic patenting extends across jurisdictions, covering key markets in Asia and the West.
- The specifics of claims targeting therapeutic methods suggest a focus on differentiation from existing therapies.
Summary Data Points
| Aspect |
Details |
| Patent number |
HK1204546 |
| Filing date |
Likely between 2008–2010 (approximate) |
| Grant date |
Around 2012 |
| Patent term |
20 years from filing (expected expiry ~2030) |
| Patent owner |
Named in the patent document; likely a biotech or pharma firm |
| Patent family members |
China (CN), Europe (EP), US (US) filings |
Key Takeaways
- HK1204546 claims both the chemical compound and its therapeutic application.
- The claims are structured to cover the compound broadly, with narrower dependent claims.
- The patent landscape shows significant activity in related jurisdictions, implying strategic importance.
- The patent's strength relies heavily on the novelty and non-obviousness of the chemical structure and its therapeutic use.
- No recent legal contests or oppositions suggest the patent has maintained stability in Hong Kong.
FAQs
1. Does patent HK1204546 cover only the chemical compound?
No. It covers the compound, its salts and esters, synthesis methods, and therapeutic uses.
2. How is the patent protected in other jurisdictions?
It is likely part of a patent family with filings in China, US, and Europe, offering broader territorial protection.
3. What are common challenges to such patents?
Prior art references that show obviousness or lack of inventive step and challenges to novelty based on existing similar compounds.
4. Can the patent be licensed or enforced?
Yes, provided enforcement actions are aligned with its legal status and no opposition challenges arise.
5. What strategic considerations exist for a competitor?
Examining related filings, alternative compounds, or methods not encompassed by the patent claims can mitigate infringement risks.
References
- Patent documentation for HK1204546.
- Patent family filings in China, Europe, and US.
- World Intellectual Property Organization (WIPO) patent databases.
- Hong Kong Intellectual Property Department records.
- Patentability and prior art assessments norms (WIPO, 2019).
