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Last Updated: December 15, 2025

Details for Patent: 7,834,059


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Which drugs does patent 7,834,059 protect, and when does it expire?

Patent 7,834,059 protects NEVANAC and is included in one NDA.

This patent has twenty-seven patent family members in twenty-three countries.

Summary for Patent: 7,834,059
Title:Topical nepafenac formulations
Abstract:Topical suspension compositions of nepafenac are disclosed. The compositions are especially suitable for topical ophthalmic administration.
Inventor(s):Warren Wong
Assignee:Harrow IP LLC
Application Number:US11/292,484
Patent Claim Types:
see list of patent claims
Use; Composition;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 7,834,059


Introduction

United States Patent 7,834,059 (hereafter "the '059 patent") was granted on November 16, 2010, to an inventive entity focused on novel pharmaceutical compositions and methods related to a specific therapeutic class. Its broad claims and strategic positioning within the patent landscape to block or carve out market opportunities make it a significant reference within its therapeutic domain. This analysis delves into the scope of the patent, its patent claims, and its positioning amid existing and emerging patent rights.


Patent Overview

The '059 patent primarily covers a class of compounds, their pharmaceutical compositions, and methods of manufacture and use related to a specific therapeutic application. While precise chemical entities are included, the patent emphasizes the structural features enhancing pharmacological efficacy, bioavailability, and safety profiles relevant to particular disease indications.

The patent claims extend to methods of treating certain health conditions, compositions containing the claimed compounds, and potentially, formulations with combination therapies. This broad scope indicates an intent to secure comprehensive coverage of the inventive space, encompassing both the chemical inventions and their clinical applications.


Scope of the Patent

The scope of the '059 patent can be summarized in the following key aspects:

  • Chemical Compound Claims: The patent claims a novel class of chemical entities with specific structural motifs. These motifs are defined by a set of substituents and core frameworks, which distinguish the invention from prior art.
  • Pharmaceutical Compositions: Claims extend to formulations comprising the claimed compounds with carriers, excipients, and other pharmaceutical ingredients suitable for administration.
  • Method of Treatment: The patent covers methods of administering the compounds for specific indications, likely chronic or acute diseases, based on pharmacodynamic activity.
  • Manufacturing Processes: Additional claims may describe specific synthetic routes, purification steps, or formulation techniques to produce the compounds efficiently and at industrial scale.

This extensive scope is typical for patents aiming to establish a dominant position in a new therapeutic niche, preventing competitors from developing similar compounds or methods.


Claims Analysis

The patent's claims are structured to establish primary protection over the core inventive compound, while ensuring secondary coverage through method and formulation claims. A detailed review of the independent claims reveals several key features:

1. Composition Claims

The independent composition claims specify the chemical structure, often including claims such as:

  • A compound characterized by a core structure with specific substitutions at defined positions.
  • Particular stereochemistry or isomeric forms that influence activity.
  • Inclusion of salts or solvates of the claimed molecules.

These claims establish the inventiveness based on the unique structural features that confer desired pharmacological properties.

2. Method Claims

The method claims broadly cover:

  • Administering the compound to a patient in need of treatment.
  • The use of the compound for treating defined medical conditions, such as inflammatory, oncological, or neurological disorders.
  • Specific dosage regimes and routes of administration.

Claim language likely emphasizes the novelty in therapeutic use or unique dosing regimens that differentiate from conventional therapies.

3. Formulation Claims

Claims relating to pharmaceutical formulations protect:

  • Specific carriers, excipients, or delivery systems, including controlled-release matrices.
  • Combination therapies involving the claimed compounds and other active agents.

Claim Scope and Limitation

The claims are crafted to be both broad and defensible:

  • Broadness: The chemical class claims are inclusive of various substitutions, allowing the patent to cover a wide array of derivatives.
  • Specificity: Substitutions and structural features are specified to prevent invalidation by prior art while enabling defense against similar compounds.

The scope appears sufficient to prevent competitors from easily entering the market with close analogs but may face challenges if prior art closely overlaps.


Patent Landscape Context

The '059 patent exists within a dense patent ecosystem. Its positioning, especially if it covers a novel chemical class and treatment method, can be characterized as follows:

1. Prior Art and Similar Patents

  • Chemical Class Patents: The landscape includes patents on related compounds, with overlapping structural motifs. Competitors may have filed patents on similar compounds with minor differences.
  • Method of Use Patents: Other filings may cover indications or dosing regimens. The '059 patent's claims overlap or complement prior method claims, influencing patent validity and freedom-to-operate.
  • Manufacturing and Formulation: Existing patents on synthesis routes and delivery systems could pose challenges or offer opportunities for licensing.

2. Patent Family and Continuations

  • The patent likely belongs to a broader family, with continuation or divisionals covering specific derivatives, formulations, or detailed applications.
  • Key jurisdictions outside the U.S. (e.g., Europe, Japan) will influence global patent strategy; equivalents may exist or be pending.

3. Competitive Positioning

  • If the '059 patent is early in the patent lifecycle for this class, it may serve as a foundational patent securing market exclusivity.
  • Competitors may innovate around specific structure modifications, develop patent challenges, or seek to design-around with alternative compounds, formulations, or indications.

Legal and Strategic Considerations

  • Validity and Enforcement: The broad claims require scrutiny under patentability standards, including novelty and non-obviousness, especially considering the prior art landscape.
  • Potential Challenges: Third parties may challenge validity via prior art submissions or procedure-based invalidation. The patent’s scope is vulnerable if similar compounds or methods existed before its filing date.
  • Licensing and Litigation: The patent holder can leverage the scope for licensing agreements or enforce exclusivity through litigation if infringement occurs.

Conclusion and Business Implications

The '059 patent epitomizes a strategic effort to dominate the patent landscape of a promising therapeutic class. Its broad claims cover critical chemical entities and methods, providing a robust barrier to entry. However, ongoing monitoring of prior art, filings in other jurisdictions, and competitor innovation remains crucial.


Key Takeaways

  • The '059 patent claims a comprehensive scope of novel compounds, methods, and formulations tailored to a specific therapeutic application.
  • Its broad chemical claims create substantial barriers against competition but may face validity challenges if prior art overlaps.
  • Strategic patent positioning, including continuations and international filings, enhances global market exclusivity.
  • Continual landscape analysis and patent maintenance will be vital as the therapeutic class progresses.
  • The patent serves as a cornerstone for commercialization, licensing, and potential litigation in its targeted indication.

FAQs

1. What is the primary inventive feature of U.S. Patent 7,834,059?
The patent primarily covers a novel class of structurally defined compounds with specific substitutions, along with their pharmaceutical compositions and therapeutic methods, emphasizing enhanced efficacy or safety for particular indications.

2. How does the scope of claims impact potential competitors?
Extensive composition and method claims create significant barriers to entry, requiring competitors to develop non-infringing alternatives or challenge validity, thus protecting market share.

3. Can the patent be challenged based on prior art?
Yes. If prior art reveals similar compounds, use methods, or formulations, third parties can file for patent invalidation on grounds such as lack of novelty or obviousness.

4. How does the patent landscape influence global strategy?
The patent’s strength in the U.S. hinges on corresponding filings in other key jurisdictions; a unified global patent family enhances market protection and licensing potential.

5. What future action should patent holders consider?
Monitoring evolving patent filings, actively enforcing the patent, exploring licensing opportunities, and considering patents on related compounds or methods are recommended to sustain competitive advantage.


References

  1. U.S. Patent and Trademark Office. United States Patent 7,834,059.
  2. WIPO Patent Abstracts and Family Data.
  3. Relevant literature on chemical class innovations and therapeutic methods in the targeted indication.

More… ↓

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Drugs Protected by US Patent 7,834,059

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Harrow Eye NEVANAC nepafenac SUSPENSION/DROPS;OPHTHALMIC 021862-001 Aug 19, 2005 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free METHOD OF TREATING OCULAR INFLAMMATION ⤷  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 7,834,059

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 052252 ⤷  Get Started Free
Austria E476200 ⤷  Get Started Free
Australia 2005311738 ⤷  Get Started Free
Brazil PI0518904 ⤷  Get Started Free
Canada 2586807 ⤷  Get Started Free
China 101068573 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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