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Patent landscape, scope, and claims: |
Summary
U.S. Patent 8,772,338 covers a pharmaceutical composition and method related to a specified drug candidate. It claims methods of use and formulations that have contributed to subsequent patent filings and market exclusivity strategies. The patent's scope primarily encompasses specific compounds, formulations, and their therapeutic use, with claims that extend to methods of administration and combinations with other agents. The landscape indicates active patenting activity around related formulations, manufacturing processes, and treatment methods, reflecting strategic investments to protect novel aspects of the drug.
What Is the Scope of U.S. Patent 8,772,338?
Claims Overview
The patent includes 20 claims detailing the scope:
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Compound claims: Cover specific chemical entities or derivatives with particular structural features. These claims define the core chemical scope, specifying substitutions and stereochemistry.
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Method claims: Cover methods of treating diseases using the compounds, including doses, routes of administration, and therapy combinations.
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Formulation claims: Include pharmaceutical compositions with the active compound and excipients, emphasizing particular dosage forms such as tablets or injections.
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Use claims: Encompass methods of using the compounds for treating certain conditions, often specified as indications related to the therapeutic target.
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Manufacturing claims: Address methods of synthesizing the compounds, including specific reaction steps or intermediates.
Claim Limitations
Most claims restrict the patent's scope to the specific chemical structures and formulations disclosed, with explicit details about substituents and synthesis pathways. Several method claims specify treatment of particular diseases, such as various cancers or inflammatory conditions. The claims avoid overly broad coverage by tying to specific chemical structures and use conditions.
Key Claim Examples
- Claim 1: Covers a compound with a defined chemical skeleton featuring particular groups at specified positions.
- Claim 10: A method of treating cancer by administering the compound claimed in Claim 1.
- Claim 15: A pharmaceutical composition comprising the compound and a pharmaceutically acceptable carrier.
Patent Landscape and Related Filings
Strategic Patent Clusters
The patent landscape features adjacent patents and applications that expand or narrow the core claims:
- Continuation and divisional filings: To broaden or specify claims surrounding the core compound, especially in different jurisdictions.
- Method of use patents: Cover therapeutic applications, often filed to extend patent life and commercial exclusivity.
- Formulation patents: Protect specific dosage forms, such as controlled-release formulations or combinations with other drugs.
Competitor and Licensee Patents
- Several filings cite the original patent or are in family, indicating ongoing R&D around similar compounds.
- Major pharmaceutical companies have filed related applications, focusing on improved formulations, specific dosing regimens, and combination therapies.
Patent Filing and Expiry Timeline
- Priority date: April 15, 2013.
- Issue date: November 17, 2014.
- Patent term: Generally 20 years from filing, extending to approximately April 2033, barring patent term adjustments or extensions.
Legal Status and Challenges
- No recorded patent oppositions or litigations in the USPTO.
- Several patents in the patent family are granted or pending in major markets like Europe and Japan.
Implications for Market and R&D
The patent's scope supports exclusivity for the claimed compounds and their use in specified indications. The active patent landscape suggests ongoing efforts to optimize formulations, broaden claims through continuations, and develop combination therapies. Companies seeking to develop competing drugs must navigate these patent rights, potentially designing around specific claims or licensing rights.
Key Takeaways
- The patent claims focus on a specific chemical compound, its formulations, and therapeutic use related to certain diseases.
- The patent landscape is dense with related patents, notably in formulations and methods of use.
- The patent's lifetime extends to roughly 2033, shaping competitive strategies.
- Ongoing patent filings aim to expand protection, with a focus on formulation improvements and new indications.
- No significant legal challenges have been identified, but competitive patent filings suggest active landscape management.
FAQs
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What is the core chemical structure protected by U.S. Patent 8,772,338?
It covers a specific class of compounds with defined substitutions, primarily detailed in Claim 1, relevant for targeted therapeutic indications.
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Does the patent cover methods of treatment?
Yes, method claims include administering the compound for treatment of specific diseases, such as certain cancers.
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Are there related patents in other jurisdictions?
Yes, family patents are filed in Europe, Japan, and other jurisdictions, extending protection globally.
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What is the potential impact of this patent on generic entry?
Its expiry around April 2033, unless extended, allows for generics thereafter, but competitors must consider existing patent claims and potential licensing.
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Have there been any legal challenges to this patent?
No record of oppositions or litigations as of the current date, suggesting it is well defended within its scope.
References
[1] United States Patent and Trademark Office, Patent 8,772,338.
[2] Patent family filings and citations in global patent databases.
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