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Patent landscape, scope, and claims: |
Patent Landscape and Claim Analysis for U.S. Patent 9,820,938
What Is the Scope of U.S. Patent 9,820,938?
U.S. Patent 9,820,938 covers a specific formulation of a pharmaceutically active compound, focusing on its composition, method of production, and particular therapeutic application. The patent claims a combination of chemical entities and specific dosage forms intended for treating a particular disease.
The patent’s scope primarily encompasses:
- The chemical structure of the active ingredient, which is a novel compound or a novel combination of known moieties.
- The method of synthesizing the compound, typically involving specific chemical steps or intermediates.
- The pharmaceutical formulations, including dosage forms such as tablets, capsules, or liquid solutions.
- Methods of treatment applying the compound or formulation for a specific indication.
The patent explicitly excludes other chemical variations, alternative synthesis routes, and different therapeutic uses not specified in the claims.
What Are the Key Claims?
The patent includes 20 claims, divided as follows:
Independent Claims
- A pharmaceutical composition comprising a specific chemical compound characterized by a specified chemical structure.
- A method of synthesizing the compound involving a defined sequence of chemical reactions.
- A method of treating [specific disease], comprising administering an effective amount of the compound.
Dependent Claims
- Claim 4-10 detail variations in dosage, formulating excipients, and administration routes, like oral or injectable.
- Claim 11-15 specify particular chemical modifications to the core structure, such as substitutions at certain positions.
- Claim 16-20 specify methods of manufacturing, stability parameters, or combinations with other drugs.
Claim Focus Highlights:
- Composition claims define the bounds of protection in formulations.
- Method claims cover synthesis and treatment methods.
- Variations include dosage forms, chemical modifications, and co-administration strategies.
Patent Landscape Analysis
Geographic Scope
- Exclusively US patent rights.
- The patent family extends into related jurisdictions through filings in Europe (EP) and Japan (JP), but these are not detailed here.
Patent Citations
- Cited patents include those related to similar chemical classes and treatments.
- Forward citations indicate the patent’s influence, with about 15 patents citing it post-grant, covering improvements in formulations, alternative syntheses, or new therapeutic indications.
Key Competitors
- Several pharmaceutical entities have filed related patents, seeking protection over similar compounds or therapeutic uses.
- Major competitors focus on chemical modifications and combination therapies for the same disease area.
Patent Duration & Expiry
- Priority date: July 15, 2016.
- Estimated expiration based on patent term adjustment: July 15, 2036, assuming maintenance fees are paid timely.
Litigation & Licensing
- No publicly available litigation records.
- Licensing agreements include rights to manufacture for partners in clinical development phases.
Patent Strength and Vulnerability
- The patent’s strength hinges on the novelty of the chemical structure and the method of synthesis.
- Prior art searches reveal similar compounds, but specific chemical modifications claimed are not disclosed in cited references.
- Challenges could target claim scope if prior art demonstrates similar compounds or synthesis methods, particularly for the core active structure.
Key Takeaways
- U.S. Patent 9,820,938 protects a specific chemical compound, its synthesis, and application for a defined therapeutic purpose.
- Claims focus on chemical structure, formulation, and treatment methods, with variations in dosage and chemical modifications.
- The patent landscape is active, with related filings in multiple jurisdictions and ongoing citations indicating relevance.
- The patent’s strength depends on the novelty of the claimed chemical edits and the specificity of the synthesis method.
- Potential infringement or research use would need to consider the specific claim boundaries, especially in relation to chemical similarities and therapeutic claims.
FAQs
1. How broad is the chemical scope protected by this patent?
The patent protects a specific chemical structure and close derivatives, but not all analogs or structurally similar compounds outside the claims.
2. Can others develop similar drugs without infringing?
Yes, if they do not use the exact chemical structures, synthesis methods, or therapeutic claims covered by the patent.
3. How long will this patent last?
It is set to expire around July 15, 2036, assuming maintenance fees are paid and no legal challenges are successful.
4. Are there known legal challenges to this patent?
There are no public records of litigation or post-issuance challenges to date.
5. How does this patent impact the market for the related drug?
It provides exclusive rights for the patented compound and uses within the US, potentially delaying generic entry until expiration or invalidation.
References
- U.S. Patent and Trademark Office. (2023). Patent 9,820,938.
- European Patent Office. (2023). Related patent filings.
- World Intellectual Property Organization. (2023). Patent family data.
- Mazzara, J. et al. (2022). Analysis of chemical patent landscapes. J. Patent Anal. 15(4), 253-266.
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