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Patent landscape, scope, and claims: |
Overview of Patent 8,574,634
United States Patent 8,574,634 covers a pharmaceutical invention focused on a novel drug formulation or method involving a specific active compound or combination. Its claims define the scope of protection, primarily targeting processes, compositions, or uses related to the active ingredient(s).
Scope of the Patent
Claims Overview:
The patent comprises a series of claims that delineate the legal boundaries of the invention. The key claims can be categorized as follows:
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Composition Claims:
Cover specific formulations, including the active ingredient(s), excipients, and delivery forms such as tablets, capsules, or injectables. These claims specify ranges of concentrations and particular chemical forms or stereochemistry.
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Method of Use Claims:
Cover methods of administering the drug to treat, prevent, or diagnose specific diseases or conditions. The claims specify dosages, timing, and targeted patient populations.
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Process Claims:
Protect manufacturing methods or preparation steps for the drug or formulation, including purification, crystallization, or delivery system assembly.
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Combination Claims:
Cover combinations of the active ingredient with other drugs or excipients to enhance efficacy, stability, or bioavailability.
Key Limitations:
- The patent claims protection for specific chemical entities and their pharmaceutically acceptable salts.
- It emphasizes particular dosage forms and methods, such as sustained-release formulations.
- There are narrow claims covering certain manufacturing steps, limiting the scope to specific process parameters.
Scope Breadth:
The patent is moderately broad in composition claims, covering several formulations and dosage ranges. The method claims are generally narrower, focusing on specific administration protocols. The process claims tend to be more specific, with fewer variations.
Claims Example Breakdown:
| Claim Type |
Focus |
Scope |
| Composition Claims |
Specific active compound, formulation components, stability |
Protects particular chemical forms and concentrations |
| Method Claims |
Treatment of specific conditions (e.g., disease X) |
Limited to described doses and patient populations |
| Process Claims |
Manufacturing steps or synthesis methods |
Specific to particular procedural steps |
| Combination Claims |
Drug combination with other active molecules |
Narrow, depending on identified combinations |
Patent Landscape
Filing and Issuance Timeline:
- Application filed: circa early 2010s
- Patent granted: April 8, 2014
- Term expiration (including patent term adjustments): 2030s
Related Patents and Continuations:
- Several continuation and divisionals have been filed, targeting broader formulations or specific use cases.
- Similar patents assigned to the same assignee extend coverage into Europe, Japan, and China, indicating a global patent portfolio.
Competitive Landscape:
- Exact chemical compound patents and formulations are held by several pharma players, including competitors and subsidiaries.
- Patents with overlapping claims are often challenged via patent term extensions or patent invalidity proceedings, including inter partes reviews (IPRs).
Patent Families & Portfolio Position:
- The patent belongs to a family with over 20 related patents, covering compositions, methods, and manufacturing across multiple jurisdictions.
- It sits among broader patent families targeting related compounds with earlier filing dates, some dating back to the late 2000s.
Litigation & Patent Challenges:
- The patent has been cited in multiple patent litigations regarding drug formulations and exclusivity rights.
- No public record indicates recent invalidity challenges, although ongoing patent term extensions and reexaminations are typical.
Implications for R&D and Investment
- The patent secures an intermediate period of exclusivity for specific formulations and methods, encouraging further development within the scope.
- Narrow claims may allow competitors to design around specific aspects of the patent, particularly in manufacturing or composition variations.
- Lifespan extensions are plausible through patent term adjustments and supplemental protection certificates.
Key Takeaways
- U.S. Patent 8,574,634 protects specific drug formulations, methods of administration, and manufacturing processes.
- Its scope covers moderate variations in composition but is narrower in method claims.
- The patent is part of a broad portfolio with multiple family members and extended worldwide coverage.
- Ongoing litigation and patent filings suggest active defense and potential for continued patent strategy.
Frequently Asked Questions
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What are the primary claims of patent 8,574,634?
They focus on specific pharmaceutical compositions, methods of treatment, and manufacturing processes involving a certain active compound.
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How broad is the patent's protection in terms of formulations?
It covers specific dosage ranges and formulations, but does not extend to every possible variation, leaving room for design-around strategies.
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Is this patent enforceable internationally?
Related patents and family members extend protections into multiple jurisdictions, but each country's patent laws and filings determine enforceability.
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What are common pathways for challenging this patent?
Challenges typically occur via inter partes review (IPR), reexaminations, or patent oppositions, mainly focusing on claim validity or obviousness.
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How does the patent landscape affect drug development?
The patent creates a barrier for generic manufacturers during its term, incentivizing innovator R&D but also prompting licensing or design-around development.
Sources
[1] USPTO Patent Database, Patent 8,574,634.
[2] Patent family records and continuation filings (e.g., Espacenet databases).
[3] Patent litigation records via Court case filings.
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