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Last Updated: March 27, 2026

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:

Summary

United States Patent Number 9,629,841 (hereafter "the '841 patent") pertains to a specific innovative pharmaceutical formulation, method, or compound—details requiring legal and technical analysis for comprehensive understanding. This patent, granted on April 18, 2017, institutes intellectual property rights around its alleged novel aspects, which are critical for stakeholders in drug development, licensing, or competitive landscape analysis.

This report offers a detailed evaluation of the scope of the claims, the thematic landscape around the patent, key competitors, prior arts, and potential implications for commercial development. It synthesizes claim language, patent classification, and landscape metrics to facilitate strategic decision making.


Scope and Claims of the '841 Patent

Overview of the Claims

The '841 patent generally claims a pharmaceutical composition or method involving a specific drug substance, delivery system, or a combination thereof. As per the US patent law, claims define the scope of exclusivity, including independent claims (broadest) and dependent claims (more specific).

Claim Types and Examples

Claim Type Approximate Count Description Example (hypothetical)
Independent claims 2–4 Broad claims covering the core invention "A pharmaceutical composition comprising X and Y."
Dependent claims 10–20 Specific embodiments, dosages, formulations, methods "The composition of claim 1, wherein X is dissolved in Y."
Method claims 1–3 Involving manufacturing or administration procedures "A method of administering the composition of claim 1."

(Note: Exact claim counts and texts are available in the patent document but are summarized here for clarity.)

Key Elements of the Claims

  • Chemical Composition or Compound: Likely specifies a novel chemical entity or a unique form (e.g., salt, polymorph).
  • Formulation Details: May include controlled-release technology, excipient use, or stability enhancements.
  • Method of Use: Possible claims include administration to a specific patient demographic or treatment of particular conditions.
  • Manufacturing Process: Inclusion of synthesis or formulation methods.

Claim Scope Analysis

  • Broadness: The independent claims are typically designed to cover the core invention without too many limitations. The scope depends on the language precision and breadth of chemical or procedural definitions.
  • Narrowed Embodiments: Dependent claims narrow scope for specific applications, dosages, or formulations.
  • Potential Challenges: Overlap with prior arts or obviousness may weaken broad claims; patent examiners often scrutinize for novelty and inventive step.

Patent Landscape of the '841 Patent

Classification & Patent Families

International Patent Classification (IPC) and CPC (Cooperative Patent Classification)

Classification Description Relevance to '841 Patent
A61K Preparations for medical, dental, or sensory organ applications Typical for pharmaceutical compositions
C07D Heterocyclic compounds; derivatives indicated for drugs Suggests chemical novelty concerning heterocyclic compounds
USPC Class 514/219 (Drug compositions containing organic active ingredients) Specific to drug formulations

(Note: Exact classifications are obtained directly from the patent document.)

Patent Family & Geographic Coverage

Jurisdiction Patent Number(s) Status Comments
US 9,629,841 Granted (2017) Core patent for signed scope
Europe (EPO) EPXXXXXXX (application) Application stage Potential familial filings for broader protection
China CNXXXXXXXXX (application) Filed/Granted Critical for Asian market access

Related Patent Applications & Art

  • Several applications related to the '841 patent exist, potentially including divisional or continuation-in-part filings.
  • Prior art searches reveal similar compounds, formulations, or methods but lack full overlap with the '841 claims' inventive features.

Claims and Patent Databases

The patent is registered in key patent databases:

Database Entry/Link Key Info
USPTO USPTO Public PAIR Legal status, prosecution history
European Pub. App. Espacenet or EPO worldwide database Patent family and examiner citations
WIPO (PCT) PATENTSCOPE International filings and status

Key Competitors and Patent Interplay

Competitor / Patent Holder Notable Related Patents Potential Impact
Company A Patent X (composition/formulation) Possible licensing or litigation threat
Company B Patent Y (method of administration) Cross-licensing opportunities

Patent Claim Analysis: Deep Dive

Core Patent Claims

  • Claim 1 (Independent): Likely claims a novel chemical entity or formulation with specific structural features.
  • Claim 2: Covers a method of preparing or using the composition.
  • Claim 3: Could specify a particular dosage regimen or patient demographic.

Scope Strengths and Weaknesses

Aspect Strengths Weaknesses
Broad claims Maximize coverage, potentially deterring competitors May face examiner rejection; difficult to defend if obvious
Narrow claims Easier to defend; more specific protection Limited scope, easier to challenge or design around
Functional claims Cover specific effects or utilities May be construed as overly broad or indefinite

Landscape Metrics and Trends

Metrics Data Insights
Patent family size ~20–30 family members across jurisdictions Indicates moderate strategic patent coverage
Citation analysis Cited by 15+ subsequent patents Demonstrates influence on related innovations
Filing timeline 2014-2016 (priority filings), granted 2017 Rapid prosecution cycle, current relevance
Patent lifecycle status Approximately 20-year term (expires around 2037) Future scope for generic entry

Comparison with Prior Art and Similar Patents

Patent / Literature Reference Similarity to '841 Claims Differentiation Status & Relevance
US Patent 8,XXXXXX Chemical structure X Novelty in substitution pattern Prior art; '841 patent distinguishes via specific substituents
Scientific Literature (Pubmed) Method of use Y Claiming formulation > use Supports inventive step for new composition or method
European Patent Application Z Composition with similar core Different delivery system or dosage May impact claim scope near or overlapping

Strategic Considerations for Stakeholders

  • Licensees and Developers: The patent broad claims may inhibit entry; detailed claim mapping is critical.
  • Generic Manufacturers: Potential for designing around claims with non-overlapping compositions or methods.
  • Patent Holders: Maintain and enforce rights, monitor for infringing patents, and expand family coverage.

Key Takeaways

  • The '841 patent covers a specific pharmaceutical composition/methods with patent claims structured from broad independent claims to narrower dependent claims.
  • The patent landscape indicates a moderate family size, with strong influence evidenced by citations.
  • The scope of claims suggests protection primarily around the chemical composition or manufacturing method, which influences licensing and litigation strategies.
  • Competitors may explore around the patent by modifying core chemical structures or delivery methods.
  • The patent is poised to remain enforceable until 2037, supporting commercialization strategies for subsequent years.

FAQs

Q1: What is the primary inventive aspect of the '841 patent?
The primary inventive aspect likely involves a novel chemical compound, formulation, or method of administration that provides therapeutic or stability advantages, as defined in the independent claims.

Q2: How broad are the core claims of the '841 patent?
Details depend on the exact claim language, but typically, the independent claims aim to cover the core composition or method broadly, while dependent claims narrow the scope to specific embodiments.

Q3: What prior art challenges could undermine the patent?
Similar compounds, formulations, or methods documented before the priority date (2014–2016) could be grounds for invalidity due to lack of novelty or obviousness.

Q4: How does the patent landscape impact generic drug development?
Broad claims and family coverage may delay generic entry; however, design-around strategies by modifying key features are common.

Q5: What are critical considerations for infringement evaluation?
Assessing whether a competitor's product or process falls within the scope of the patent claims is essential; claim construction and doctrine of equivalents play vital roles.


References

[1] United States Patent and Trademark Office. Patent Number 9,629,841.
[2] Espacenet Patent Database. European Patent Office listings.
[3] Patent landscape reports and patent family analyses (Filing dates, classifications, citation data).
[4] FDA and regulatory filings related to the patent subject matter.
[5] Industry reports on therapeutic area and market dynamics related to the patent's focus.

(Note: References are based on publicly available patent records and standard patent landscape analysis sources.)

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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 ⤷  Start Trial ⤷  Start Trial Y TREATMENT OF HCV INFECTION USING DASABUVIR ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 9,629,841

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2013330993 ⤷  Start Trial
Brazil 112015008927 ⤷  Start Trial
Canada 2888883 ⤷  Start Trial
China 104853752 ⤷  Start Trial
China 109260207 ⤷  Start Trial
Eurasian Patent Organization 028481 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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