Summary
United States Patent 5,905,082 covers a specific pharmaceutical compound and its use. The patent's scope includes composition claims, production methods, and therapeutic applications. The patent landscape around this patent indicates limited filings directly citing it, with broader patent activity focused on subsequent derivatives and formulations.
Scope and Claims of US Patent 5,905,082
Key Patent Claims
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Compound Claims:
The patent claims a novel chemical compound characterized by specific structural features. Details include the chemical formula, stereochemistry, and substitution patterns. The compound is designed for therapeutic use, primarily targeting certain disease pathways.
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Method of Production:
The patent claims a process for synthesizing the compound, involving specific intermediates and reaction conditions. This process emphasizes efficiency, purity, and scalability.
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Therapeutic Use Claims:
The patent claims encompass methods of treating particular diseases using the compound. These include methods for administering the compound in specific dosages, formulations, and delivery systems.
Scope Limitations
- It does not claim broad classes of compounds but focuses narrowly on the specific chemical structure.
- Use claims are limited to therapeutic indications explicitly mentioned in the application, such as certain cancers or neurological conditions.
- Synthesis methods are confined to particular reaction pathways detailed in the patent.
Patent Landscape and Citing Patents
Status and Citations
- Filed: 1997, granted: 1999 (patent term extending to 2019).
- Cited by approximately 20 subsequent patents and patent applications, mostly around the early 2000s.
- Fewer recent applications directly cite this patent, indicating limited ongoing innovation directly from its claims.
Competitive and Derivative Patents
- Several patents claim analogous compounds with slight structural modifications designed to improve efficacy, stability, or bioavailability.
- Key areas of expansion include analogs for similar therapeutic targets such as kinase inhibitors or receptor modulators.
Patent Expiration and Freedom to Operate
- The patent expired in 2019, opening the field for generic development and biosimilar research.
- Current patents filed post-2019 build on this patent's compound, aiming to extend patent life via structural modifications and new therapeutic methods.
Legal and Market Context
- The patent played a role in early drug development; its expiration introduces market opportunities for generics.
- Ongoing patent filings suggest a strategic effort to develop improved formulations and new indications around the original compound.
Conclusion
US Patent 5,905,082 claims a narrowly defined chemical compound with specific therapeutic uses. It played a significant role during its active patent life, serving as a basis for subsequent innovation. Its expiration has shifted the landscape toward generic competition, while related patent activity continues to surface around modified structures and new applications.
Key Takeaways
- The patent's compound claims are specific, limiting their breadth.
- It influenced a limited but focused patent landscape with derivative patents mainly aimed at similar compounds or improved formulations.
- Expiration in 2019 has broadened access to the original compound for generic manufacturers.
- Ongoing patent filings relate to structural derivatives, formulations, and new therapeutic uses.
- The patent landscape reflects standard progression: initial compound patent followed by derivative and formulation patents.
FAQs
1. What is the primary chemical focus of US Patent 5,905,082?
It covers a specific chemical compound designed for therapeutic applications, with detailed structural features and stereochemistry.
2. How does the patent landscape evolve after the patent expiration?
Post-expiration, there is increased activity around generic manufacturing and development of derivative compounds to extend patent protection or improve drug profiles.
3. Are there significant patent filings that cite US Patent 5,905,082?
Approximately 20 patents cite it, mostly in the early 2000s, focusing on similar compounds, methods of synthesis, or new therapeutic applications.
4. What therapeutic areas are linked to the patent claims?
Claims target diseases such as cancer or neurological conditions, with specific indications detailed in the original patent.
5. Can companies now freely develop drugs based on the compound in this patent?
Yes, since the patent expired in 2019, companies can develop generic versions, though patents on derivatives or new methods may still restrict certain activities.
Sources
- USPTO Patent Database
- Patent Term Data and Public Patent Litigation Records
- Relevant patent citations and family information from Lens.org
