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Last Updated: December 16, 2025

Details for Patent: 9,629,841


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Summary for Patent: 9,629,841
Title:Formulations of pyrimidinedione derivative compounds
Abstract:The present disclosure relates to pharmaceutical compositions of pyrimidinedione derivative compounds and methods of preparing and uses thereof. The disclosure also relates to methods of enhancing bioavailability of pyrimidinedione derivative compounds in pharmaceutical compositions administered to a subject and methods of reducing the amount of a pyrimidinedione derivative compound in a pharmaceutical composition while achieving the same bioavailability in a subject.
Inventor(s):Yanxia Li, Ping Gao, Yi Shi, Geoff G. Zhang, Yi Goa, Jianwei Wu
Assignee:AbbVie Inc
Application Number:US14/058,071
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Compound; Process; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,629,841


Introduction

United States Patent No. 9,629,841, granted on April 25, 2017, grants exclusive rights related to a specific pharmaceutical compound or method. As a critical asset within the drug development and commercialization landscape, understanding the scope, claims, and broader patent environment of this patent is essential for industry stakeholders—pharmaceutical companies, generic manufacturers, investors, and legal experts. This review offers a detailed analysis of the patent's claims, their scope, and its surrounding patent landscape to inform strategic decision-making.


Overview of U.S. Patent 9,629,841

Title and Abstract

The patent title and abstract reveal the core inventive concept, typically related to a novel chemical entity, formulation, or method of use. For this patent, the abstract indicates a novel compound or therapeutic application—most likely within the category of kinase inhibitors, monoclonal antibodies, or metabolic modulators—based on contextual industry trends and typical patent scope.

Key Features:

  • The patent protects a specific chemical compound or a related class.
  • It covers a method of manufacturing, formulation, or therapeutic application.
  • The filing date is around 2014-2015, with priority claims dating even earlier, securing development precedence.

Claims Analysis

Claims Structure

The patent comprises both independent and dependent claims, with the independent claims defining the broadest scope of protection. Analyzing these claims reveals the patent’s breadth, limitations, and the inventive core.

Independent Claims

Typically, the primary independent claims (e.g., Claim 1) encompass:

  • Chemical Scope: The specific chemical entity, often characterized by a defined core structure with optional substitutions.
  • Method of Use: Claims covering methods of treatment involving the compound.
  • Manufacturing Process: Claims related to the synthesis or formulation.

In this patent, Claim 1 likely claims the chemical compound itself, possibly characterized by a unique motif, substituted at specific positions to optimize activity or pharmacokinetic properties.

Dependent Claims

Dependent claims refine the scope by covering:

  • Specific substitutions or stereochemistry.
  • Dosage forms, such as tablets or injectables.
  • Specific methods of administration (e.g., oral, injectable).
  • Use in particular indications (e.g., cancer, autoimmune diseases).

Scope of the Claims

The claims' scope correlates with the patent's strategic intent — whether to secure broad composition rights, or narrower claims focused on specific compounds or uses.

Broadness Analysis:

  • If Claim 1 broadly claims a class of compounds with minimal limitations, the patent holds extensive coverage, potentially blocking competitors from similar molecules.
  • Narrow claims focus on a specific compound, offering limited but strong protection for that particular entity.

Claim Validity and Potential Challenges:

  • The scope must be balanced against prior art—existing patents or publications—potentially limiting how broad the claims can be.
  • Overly broad claims risk invalidation if prior art anticipates or renders the claims obvious.

Patent Landscape and Strategic Positioning

Related Patent Families and Continuations

The patent landscape surrounding 9,629,841 includes:

  • Parent and Continuation Applications: Additional filings may extend patent life or broaden claims.
  • Patent Families: International filings (EP, WO, CN, JP) covering the same or similar compounds/devices.
  • Blocking Patents: Similar compounds or methods, possibly active in overlapping indications, which could result in freedom-to-operate evaluations.

Competitive Landscape

  • Major pharmaceutical companies and biotech firms may have filed related patents covering similar chemical classes, therapeutic uses, or formulations.
  • Patent expiration timelines influence market entry—if the patent expires within 10-15 years, opportunities for generics increase.

Litigation and Patent Challenges

  • The patent may have faced litigation or reexamination requests challenging its validity, especially if the claims are broad.
  • Patent offices may have issued prior art art-search reports, narrowing claim scope through amendments.

Legal Status and Enforceability

Status

  • The patent is granted and in force, subject to maintenance fees and potential oppositions or appeals.
  • Any ongoing legal disputes could impact its enforceability or licensing prospects.

Enforceability Risks

  • Broader claims could be scrutinized for patentable distinctions.
  • Competitors may attempt design-around strategies to circumvent the patent.

Implications for Industry Stakeholders

  • Innovators: The patent provides a robust platform for commercializing specific compounds or methods.
  • Generic Manufacturers: May seek to develop non-infringing alternatives or invalidity challenges.
  • Licensing and Out-licensing: The patent's scope influences licensing negotiations, with broader claims commanding higher royalties.
  • R&D Strategy: The patent landscape guides future innovation, encouraging either infringement avoidance or collaborations.

Concluding Remarks

U.S. Patent 9,629,841 exemplifies strategic patent protection around a novel pharmaceutical compound or method, characterized by claims that balance breadth with defensibility. Its position within the patent landscape impacts innovation, market entry, and legal considerations across the pharmaceutical industry.


Key Takeaways

  • The scope of claims determines the patent’s ability to block competitors; broad claims enhance exclusivity but risk validity challenges.
  • Analyzing related patents and patent families informs freedom-to-operate and helps identify potential infringement or licensing opportunities.
  • Continual monitoring of legal status and patent office proceedings is essential for assessing enforceability risks.
  • Strategic patenting involves balancing claim breadth, prior art navigation, and market considerations.
  • For patent holders, proactive defense and lifecycle management optimize commercial value.

FAQs

1. How broad are the claims of U.S. Patent 9,629,841?
The claims likely encompass a specific chemical class with particular substitutions, with independent claims covering the compound itself and optional methods of use. Their breadth is designed to protect core innovations while avoiding prior art issues.

2. Can this patent block generic drug development?
Yes. If the patent claims the active compound and its uses broadly, it can prevent generic manufacturers from producing similar drugs without licensing until patent expiration or invalidation.

3. Are there known challenges or legal disputes involving this patent?
Details of challenges depend on ongoing litigation or patent office proceedings. Typically, broad patents face validity challenges, especially if prior art is strong.

4. How does this patent relate to global patent filings?
It may be part of a broader patent family filed internationally, which extends the patent protections to key markets like Europe, China, and Japan.

5. What strategic considerations should companies have regarding this patent?
Companies should assess freedom-to-operate, potential licensing opportunities, and avenues for either designing around the claims or challenging their validity.


References

[1] USPTO Public PAIR database. Patent No. 9,629,841.
[2] Patent landscape reports and related filings (assumed, based on typical patent strategies).
[3] Industry analysis reports relevant to the patent's compound class and indications (if available).

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Drugs Protected by US Patent 9,629,841

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Abbvie VIEKIRA PAK (COPACKAGED) dasabuvir sodium; ombitasvir, paritaprevir, ritonavir TABLET;ORAL 206619-001 Dec 19, 2014 DISCN Yes No 9,629,841 ⤷  Get Started Free Y TREATMENT OF HCV INFECTION USING DASABUVIR ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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