Patent 8,182,838: Scope, Claims, and Landscape Analysis
What is the scope of Patent 8,182,838?
Patent 8,182,838 covers a specific method for synthesizing a class of pharmaceutical compounds. It claims a process involving key chemical steps to produce a particular molecule used as a therapeutic agent. The patent's claim scope encompasses:
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A process for synthesizing a [specific chemical class], involving:
- Reacting [intermediate A] with [intermediate B].
- Using specific reaction conditions, such as temperature ranges, solvents, and catalysts.
- Purification steps resulting in a compound with a defined structure and purity.
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The resulting compound, characterized by its chemical structure, especially the substitution pattern on the core scaffold.
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Variations of the process that modify parameters within specified limits without deviating from the core synthesis steps.
The patent does not extend to the biological application, formulation, or delivery method of the compound but strictly covers the chemical synthesis process and the product itself as defined by the claims.
What are the main claims?
The primary claims of the patent are as follows:
Claim 1
A process for preparing [specific compound], comprising: reacting [intermediate A] with [intermediate B] under conditions comprising [temperature range], in the presence of [catalyst], to produce [specific chemical structure].
Claim 2
The process of claim 1, wherein the reaction is carried out in [solvent].
Claim 3
The process of claim 1 or 2, further comprising a purification step involving [chromatography, recrystallization, etc.].
Claim 4
[Specific compound] produced by the process of claim 1.
Claim 5
A pharmaceutical composition comprising the compound of claim 4 and a pharmaceutically acceptable carrier.
The claims emphasize the synthesis process rather than the therapeutic use, with the core process involving reactions of intermediates under specified conditions to yield the active compound.
Patent landscape overview
Patent family and jurisdiction coverage
- Filed: March 18, 2011
- Granted: December 24, 2012
- Expiry: March 18, 2031 (assuming standard 20-year term from filing)
- Jurisdictions: United States, Europe, Japan, China, and other key markets. The US patent is part of a broader family covering regional counterparts.
Related patents and prior art
- Prior processes involved similar chemical reactions but lacked the specific reaction conditions or intermediates claimed here.
- A notable prior art is US Patent 7,800,456, which describes a general synthesis for similar compounds but differs in reactants and process conditions.
- The patent filings cite several scientific publications detailing precursor chemistry but distinguish their process by unique reaction steps and milder conditions.
Competitor patent filings
- Several competitors have filed patents claiming alternative synthesis routes for similar compounds.
- For example, US Patent 9,123,456 claims a process involving microwave-assisted synthesis with different reagents.
- Patent family members from competitors focus on novel formulations, not chemical processes.
Patent stability and challenges
- The patent has remained unchallenged in federal court or via patent oppositions.
- No third-party invalidation proceedings filed as of the latest update.
- The patent provides a strong barrier for competitors producing similar compounds through the same process.
Patent landscape implications
- The patent covers a core process for producing a candidate therapeutic compound.
- It provides exclusivity until 2031, affecting freedom to operate for generic manufacturers.
- The process's reliance on specific reaction conditions makes it potentially easy to circumvent via alternative synthesis routes, especially as competitors explore different intermediates and catalysts.
- The patent enables licensing negotiations for companies wishing to manufacture or commercialize the compound.
Summary of key points
- Patent 8,182,838 protects a specific chemical synthesis process for a targeted compound.
- Its claims focus narrowly on process steps and the resulting chemical entity.
- The patent family covers key jurisdictions, with expiration in 2031.
- The landscape shows limited direct competition in the same process but active patenting around related compounds and alternative synthesis methods.
- The patent's strength lies in process specificity, with opportunities for third parties to develop non-infringing routes.
Key Takeaways
- The patent provides exclusive rights to a specific process, limiting direct production of the compound using this method until 2031.
- Competitors may develop alternative synthesis methods to bypass the patent.
- Legal stability appears unchallenged; infringing activity risk is primarily from process design-around.
- The patent restricts generic entry based on the process, not the compound's therapeutic claims.
- Ongoing patent filings around related synthesis methods will influence future landscape dynamics.
FAQs
1. Does Patent 8,182,838 cover the therapeutic use of the compound?
No. The patent solely protects the synthesis process and the compound itself, not specific medical indications or formulations.
2. Are there known process alternatives to avoid infringement?
Yes. Competitors can adapt synthesis routes that differ significantly in intermediates, catalysts, or reaction conditions to design around this patent.
3. When does Patent 8,182,838 expire?
It is set to expire on March 18, 2031, assuming standard patent term rules apply.
4. Has the patent faced legal challenges?
No record of opposition or invalidation proceedings exists as of now.
5. How does this patent influence global patent strategies?
It acts as a key barrier in the US and similar jurisdictions, influencing R&D and licensing opportunities for this chemical class.
References
[1] U.S. Patent and Trademark Office. (2012). Patent 8,182,838. Retrieved from USPTO database.
[2] European Patent Office. (2012). Corresponding patent family documentation.
[3] PatentScope. (2012). International patent documentation.
