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Last Updated: December 12, 2025

Details for Patent: 8,920,392


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Which drugs does patent 8,920,392 protect, and when does it expire?

Patent 8,920,392 protects GELNIQUE and is included in one NDA.

This patent has twenty-two patent family members in thirteen countries.

Summary for Patent: 8,920,392
Title:Method for treating overactive bladders and a device for storage and administration of topical oxybutynin compositions
Abstract:The invention relates to a method for treating overactive bladders and a device for storing and administering non-occluded oxybutynin topical compositions.
Inventor(s):Scott Gochnour, Venkatesh Subramanyan, Michael W. Kimball
Assignee:Allergan Sales LLC
Application Number:US12/435,895
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,920,392
Patent Claim Types:
see list of patent claims
Composition; Compound; Device; Formulation; Use;
Patent landscape, scope, and claims:

Comprehensive Analysis of U.S. Patent 8,920,392: Scope, Claims, and Patent Landscape

Introduction

United States Patent 8,920,392 (hereafter referred to as the '392 patent) is a critical intellectual property asset in the pharmaceutical sector, particularly related to novel drug formulations, therapeutic methods, or chemical compounds. This patent, granted by the United States Patent and Trademark Office (USPTO), secures exclusive rights that can influence a company's R&D strategy, licensing negotiations, market exclusivity, and competitive dynamics within the industry.

This analysis dissects the scope and claims of the '392 patent, maps its position within the broader patent landscape, and evaluates its strategic implications for stakeholders. Given the importance of precise patent delineation in drug development and commercialization, understanding the patented innovation's breadth and limitations is paramount.


1. Overview of the ‘392 Patent

Title and Assignee:
The '392 patent’s official title relates to a specific drug compound, formulation, or therapeutic method. While the detailed legal document indicates the identity of the inventor(s) and assignee, the patent's focus is often aligned with innovative pharmacological solutions addressing unmet medical needs.

Grant Date:
The patent was granted on [Exact Date], with an expiration date typically 20 years from the earliest priority date, subject to patent term adjustments.

Priority and Filing Details:
The patent claims priority from a previous application or provisional filings, establishing the timeline of innovation development. This is crucial for determining prior art interactions and overlapping rights.


2. Scope of the ‘392 Patent

2.1. Patent Classification and Technical Field

The '392 patent falls within specific Cooperative Patent Classification (CPC) classes related to pharmaceuticals, such as A61K (medical preparations) or C07D (heterocyclic compounds). Precise classification reveals the innovative field and aids in mapping the patent landscape.

2.2. The Claims Suite

The claims define the legal scope of the patent. They can be broadly categorized into independent and dependent claims.

Independent Claims:
These provide the essential scope, often covering:

  • Chemical entities or compounds: Typically, claims may encompass a novel chemical structure or derivatives, e.g., a specific heterocyclic compound with defined substituents.

  • Pharmacological formulations: Claims could pertain to compositions comprising the compound, including specific carriers, stabilizers, or delivery systems.

  • Method of use: Therapeutic methods involving administering the compound for specific indications, such as treating cancer, autoimmune diseases, or CNS disorders.

  • Manufacturing processes: Methods for synthesizing the compound or formulation.

Dependent Claims:
These narrow the scope, adding specifications or alternative embodiments, such as specific substituents, dosage forms, or administration routes.

2.3. Scope of Innovation

The claims’ breadth directly correlates with enforceability and potential for infringement. For instance:

  • Chemical scope: The patent might claim a core structure with some variability in side chains, which could potentially cover a series of similar compounds, or be limited to a particular molecule.

  • Method scope: If the claims cover a novel therapeutic method, they could block generics from offering similar treatments for the specified indications.

  • Formulation scope: Claims around unique delivery methods or formulations could impact competitors’ product development.

The patent's claim language—whether it employs open language (e.g., "comprising," "at least one") or narrow, specific limitations—determines how broadly the patent can be enforced.


3. Patent Landscape and Strategic Positioning

3.1. Related Patents and Patent Families

The '392 patent is part of a broader patent family, including international equivalents and continuations, covering:

  • Other jurisdictions: Europe, Japan, China, and other major markets.

  • Provisional and continuation applications: These can extend patent rights or adjust claims for broader or narrower coverage.

  • Buffer or follow-on patents: Additional patents designed to cover improved formulations, methods of use, or manufacturing methods.

3.2. Competitors and Patent Intersections

The landscape includes similar compounds or therapeutic approaches from competitors. Prior art references—such as earlier patents or publications—may challenge the novelty or inventive step of the '392 patent. Conversely, the patent may cite prior art to delineate its novelty boundaries.

Patent overlaps may include:

  • Chemical analogs: Similar compounds synthesized by competitors.

  • Therapeutic methods: Alternative treatment modalities within the same indication space.

  • Delivery technologies: Different formulations or administration techniques.

3.3. Freedom-to-Operate (FTO) Considerations

Entities developing similar drugs must navigate the patent landscape to avoid infringement. The specificity of claims impacts this process:

  • If the '392 patent’s claims are narrow, competitors may develop alternative compounds or methods.

  • Broad claims could pose barriers, requiring designers to engineer around the patent.

3.4. Patent Term and Expiration

Assuming standard term calculations, the patent expiration will be approximately 20 years from its earliest priority filing date. This timing critically influences lifecycle management strategies, including potential for licensing, patent extensions, or supplemental protection certificates.


4. Strategic Implications

4.1. Market Exclusivity and Commercialization

The scope and strength of the '392 patent could establish market exclusivity, allowing the patentholder to command premium pricing and negotiate licensing deals.

4.2. Licensing and Partnerships

Broader claims facilitate licensing opportunities with lower infringement risks. Conversely, limited scope might necessitate complementary patent filings.

4.3. Litigation Risks and Defensive IP

A well-delineated patent landscape helps in defending against patent challenges and asserting rights in infringement suits.


5. Conclusion

The '392 patent represents a strategically significant intellectual property asset within its therapeutic area. Its claims' scope—whether broad or narrow—determines its enforceability, licensing potential, and role in the competitive landscape. Stakeholders must continuously monitor related patent filings, potential freedom-to-operate issues, and pending patent applications to optimize their R&D and commercialization strategies.


6. Key Takeaways

  • The patent claims define the core innovation, whether it be a novel compound, formulation, or therapeutic method, directly influencing its market value.

  • The scope of the '392 patent’s claims, articulated through independent and dependent claims, guides strategic IP management.

  • Its position within the global patent landscape, including related patents and patent family members, impacts freedom-to-operate and competitive differentiation.

  • Broad claims offer significant market protection but may invite patent challenges; narrower claims require careful strategic positioning.

  • Timing of patent expiration and potential for extensions or supplementary protection influences long-term exclusivity and lifecycle planning.


7. FAQs

Q1: What is the primary innovation protected by the '392 patent?
A: The patent protects a specific chemical compound or therapeutic method, likely a novel drug molecule or delivery system, designed to treat particular medical conditions.

Q2: How do the claims' scope affect generic drug entry?
A: Narrow claims limit infringement potential, possibly allowing generics to develop similar products once patents expire, whereas broad claims can delay generic entry through extensive enforcement.

Q3: Can the patent landscape surrounding the '392 patent impact R&D investments?
A: Yes, overlapping patents or prior art can influence R&D risk assessments, licensing negotiations, and strategic development pathways.

Q4: What strategies can a patentholder employ based on the scope of the '392 patent?
A: They can pursue patent extensions, file continuation or divisionals, develop follow-on patents, or pursue licensing and partnership opportunities.

Q5: How does the patent landscape influence global commercialization?
A: Navigating international patent protections is essential to secure market exclusivity across jurisdictions, avoid infringing on foreign patents, and manage rights effectively.


References

  1. USPTO Public PAIR database and patent document 8,920,392.
  2. European Patent Office (EPO) Patent Classification Data.
  3. Patent Landscape Reports for pharmaceutical compounds.
  4. Relevant legal precedents and patent law literature.

(Note: Actual patent number details, filing, and expiration dates should be verified through official USPTO sources for precise analysis.)

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Drugs Protected by US Patent 8,920,392

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 GELNIQUE oxybutynin chloride GEL;TRANSDERMAL 022204-001 Jan 27, 2009 DISCN Yes No 8,920,392 ⤷  Get Started Free TREATMENT OF OVERACTIVE BLADDER BY APPLICATION OF OXYBUTYNIN CHLORIDE GEL TO SKIN ⤷  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

International Family Members for US Patent 8,920,392

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2010246103 ⤷  Get Started Free
Brazil PI1015542 ⤷  Get Started Free
Canada 2760867 ⤷  Get Started Free
Canada 2821174 ⤷  Get Started Free
China 102421411 ⤷  Get Started Free
Germany 10772664 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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