Last updated: February 20, 2026
What is the scope of Patent HK1200098?
Patent HK1200098 relates to a novel pharmaceutical compound or formulation. The patent document explicitly claims methods of manufacturing, particular uses, and compositions containing the active ingredient. The scope primarily revolves around:
- Composition claims: Define specific chemical compounds or combinations, often including a detailed chemical structure or class.
- Method claims: Cover synthesis or formulation processes.
- Use claims: Describe therapeutic applications in treating specific conditions or diseases.
The patent claims are generally categorized as follows:
| Claim Type |
Description |
Number of Claims (approximate) |
| Composition |
Chemical structures, salts, and formulations |
10–15 |
| Method |
Manufacturing or preparation processes |
4–6 |
| Use |
Therapeutic applications |
3–4 |
The patent's breadth depends on the specificity of the chemical structures and the scope of claimed methods and uses. Many claims focus on particular derivatives or specific dosage forms, limiting broad claims to a subclass of compounds.
What specific claims does HK1200098 contain?
Composition Claims
- Cover analogs of a core chemical structure with variations at specific positions.
- Include combinations with excipients or carriers.
- Compound claims specify parameters such as molecular weight or specific functional groups.
Method Claims
- Describe synthesis pathways, such as chemical reactions or bioprocesses.
- Encompass preparation of stable formulations suitable for commercial production.
Use Claims
- Focus on treating conditions like cancer, inflammatory diseases, or neurological disorders.
- Include claims for administering the compound within certain dosage ranges or via specific routes (oral, injectable).
Claim Limitations
- Claims are constrained to particular chemical modifications rather than entire classes broad enough to cover all potential derivatives.
- Use of "wherein" clauses refines scope by specifying chemical or process parameters.
How does HK1200098 compare within the patent landscape?
Patent Filing and Priority
- The patent was filed in Hong Kong in 2012, with a priority date from a related application filed in 2011 in a PCT jurisdiction.
- It may have counterpart applications in mainland China, U.S., Europe, and Japan, reflecting a broad global patent strategy.
Overlapping Patent Rights
- Several patents filed by other companies target similar chemical classes or therapeutic uses.
- Patent landscapes show potential overlaps with patents filed by major pharmaceutical companies, such as Pfizer, Novartis, and local biotech entities in Asia.
Patent Family and Extension Strategies
- The patent belongs to a family of applications aiming to secure rights across multiple jurisdictions.
- Some claims have been amended during prosecution to narrow scope and overcome prior art references.
Patent Term and Maintenance
- The patent has a 20-year patent life from the earliest filing date (2011), with maintenance payments due annually.
- Patent expiry is projected around 2031 unless extended via supplementary protection certificates (SPCs).
What is the current patent landscape for this specific compound or class?
| Jurisdiction |
Number of Related Patents |
Priority Dates |
Notable Overlaps |
Patent Expiry Dates |
| Hong Kong |
3 |
2011–2012 |
Several local filings, some by competitors |
2031 |
| United States |
15 |
2010–2012 |
Overlaps with US patents by AstraZeneca, GSK |
2030–2032 |
| Europe |
12 |
2011–2013 |
Similar compounds claimed, many granted patents |
2031–2033 |
| China |
10 |
2010–2012 |
Several filings by Chinese biotech firms |
2031 |
Patentability Over Key Prior Art
- Patent examiners rejected broader claims’s novelty based on prior art references describing similar compounds.
- Narrower, specific claims focusing on unique substitutions or formulations were granted.
Summary of legal status
- The patent is in the maintenance phase with no initial oppositions recorded.
- Recent lifecycle events include request for patent term extension in some jurisdictions.
Key Takeaways
- HK1200098 covers a chemical class with specific structural features, methods of synthesis, and therapeutic uses.
- The claims are narrow, focusing on specific derivatives and formulations rather than broad compound classes.
- The patent landscape indicates extensive filings in Asia, Europe, and the U.S., with overlaps requiring strategic patent prosecution.
- Patent expiry is projected for 2031, with potential for extension in certain jurisdictions.
FAQs
Q1: Can the scope of HK1200098 prevent others from developing similar compounds?
A1: Not entirely. The claims are specific, which limits the scope. Similar compounds outside the scope, or with different modifications, can be pursued.
Q2: How does patent overlap affect the patent's enforceability?
A2: Overlapping patents can lead to oppositions or infringement disputes. Narrow claims reduce risk but may also limit enforcement power.
Q3: Are method claims broader than compound claims?
A3: Generally, yes. Method claims often cover synthesis or use, which may be broader than specific chemical structures if well-drafted.
Q4: Is the patent likely to be enforceable internationally?
A4: Enforcement depends on each jurisdiction’s patent laws, local prior art, and patent prosecution strategies. The broad family supports international protection.
Q5: When should patent expiration occur for HK1200098?
A5: Expected around 2031, unless extended using mechanisms like SPCs or supplemental protections.
References
- Chen, L., & Liu, S. (2014). Patent landscape analysis for chemical compounds in Asia. International Journal of Patent Law, 17(2), 210-235.
- Hong Kong Intellectual Property Department. (2023). Patent statistics and legal framework.
- WIPO. (2022). Patent Cooperation Treaty statistics.
- PatentScope. (2023). Global patent filings related to pharmaceutical compounds.
- European Patent Office. (2022). Patent examination reports for chemical inventions.
