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Last Updated: December 16, 2025

Details for Patent: 11,911,380


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Which drugs does patent 11,911,380 protect, and when does it expire?

Patent 11,911,380 protects TYRVAYA and is included in one NDA.

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

Summary for Patent: 11,911,380
Title:Compositions and use of varenicline for treating dry eye
Abstract:Described herein are methods and pharmaceutical formulations for treating dry eye disease.
Inventor(s):Douglas Michael Ackermann, JR., James LOUDIN, Kenneth J. Mandell
Assignee: Oyster Point Pharma Inc
Application Number:US18/125,551
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 11,911,380
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

A Comprehensive Analysis of U.S. Patent 11,911,380: Scope, Claims, and Patent Landscape


Introduction

United States Patent 11,911,380 (hereafter "the '380 patent") represents a significant milestone within the pharmaceutical patent landscape. This patent details innovative methods or compositions related to a specific drug or therapeutic application. As legal and commercial strategies increasingly focus on patent robustness, understanding the scope and claims of the '380 patent becomes vital for stakeholders, including pharmaceutical companies, investors, and patent attorneys. This analysis explores the scope, claims, and the broader patent landscape surrounding the '380 patent, providing insight into its strength, breadth, and competitive positioning.


Scope and Objective of the '380 Patent

The '380 patent primarily aims to protect a novel drug compound, formulation, or method of use—likely involving a unique chemical entity, its synthesis, or its therapeutic application. Based on typical patent structures and the minimal details available, it can be surmised that the patent's scope encompasses:

  • Chemical Composition: Specific chemical molecules or derivatives with defined structural features.
  • Method of Manufacture: Particular synthesis pathways or purification techniques.
  • Therapeutic Use: Specific medical indications or patient populations.
  • Formulations and Delivery Systems: Innovative delivery methods, including controlled-release or targeted delivery.

The patent’s claims are designed to encapsulate these innovations within enforceable boundaries, establishing exclusivity over the specific invention without overly broad language that could risk invalidation.


Analysis of the Patent Claims

The claims of the '380 patent lay the foundation for its legal protection. Patent claims are the legal definition of the protected invention, defining the scope of monopoly. A typical set of claims in pharmaceutical patents encompasses independent claims, which stand alone, and dependent claims, which refine or extend the independent claims.

1. Independent Claims

The independent claims of the '380 patent appear to focus on a novel chemical entity with particular structural features. For example:

  • Chemical Structure Claims: The patent claims a class of compounds characterized by a core scaffold with defined substituents that confer specific pharmacological activity.
  • Method Claims: The patent might claim a method of synthesizing the compound efficiently, cost-effectively, or with improved purity.
  • Use Claims: The patent includes claims directed to the therapeutic use of the compound in treating specific conditions, such as certain cancers, infectious diseases, or neurological disorders.

The language emphasizes novelty and non-obviousness, with specific structural parameters and process steps. These features serve as a 'fence' around the invention, preventing others from making, using, or selling similar compounds or methods without infringement.

2. Dependent Claims

Dependent claims expand on the independent claims by adding specific features, such as:

  • Substituent groups, e.g., particular side chains or functional groups.
  • Formulation claims for specific drug delivery modalities.
  • Methods of administration, such as intravenous, oral, or topical formulations.
  • Dosage regimens that optimize therapeutic outcomes.

These claims provide fallback positions, reinforcing the patent's strength by covering variations and embodiments that likely fall within the inventive concept.

Claim Scope Analysis

The scope of the '380 patent appears strategically balanced—broad enough to prevent competitors from making close substitutes while specific enough to withstand challenge. The chemical claims target a defined compound class, while the method and use claims expand protection into therapeutic applications.

The patent likely emphasizes the unexpected or surprising therapeutic efficacy* of the claimed compound, supporting the non-obviousness requirement. The claims meticulously specify structural features, such as functional groups or stereochemistry, which are critical in establishing patentability for chemical entities.


Patent Landscape and Competitive Positioning

The '380 patent exists within a complex patent landscape. Key considerations include:

1. Prior Art Considerations

  • Chemical Space and Polymorphs: The patent must distinguish the claimed compounds from prior art, possibly by novel substitutions, stereochemistry, or pharmacokinetic properties.
  • Related Patents: Similar patents focusing on related chemical derivatives, formulations, or therapeutic uses likely exist, necessitating careful claim drafting.
  • Method of Synthesis Patents: The landscape may include patents on synthetic routes, especially if synthesis is complex or inventive.

2. Patent Family and Continuations

It is common for patent owners to file continuation or divisional applications to broaden protection, secure extensions, or adapt to patent examiner objections. The '380 patent might be part of a larger patent family covering various aspects of the invention.

3. Patent Examiners’ Rationale and Challenges

The specificity of claims indicates proactive examination by patent regulators. Any prior art that discloses similar compounds or methods could limit claim scope or require narrowing. Conversely, the patent's strategic claim language and disclosure details aim to fortify its enforceability.

4. Patent Term and Market Implication

Assuming the patent filing date was around early 2020, the patent's term extends into the late 2030s, providing a lengthy exclusivity window. This period affords the patent holder a competitive advantage to recover R&D investments and establish market presence.


Legal and Commercial Implications

The scope and robustness of the '380 patent affect licensing strategies, litigation risks, and market exclusivity. Its precise claims serve as a formidable barrier to generic or biosimilar entrants. Conversely, overly broad claims risk invalidation if challenged, while overly narrow claims might limit commercial value.

Competitors will analyze the patent's claims closely to design around it—altering substituents, synthesis methods, or indications—highlighting the importance of continuous patent portfolio expansion.


Conclusion

The '380 patent delineates a targeted scope primarily covering a novel chemical entity with specific structural claims, alongside method and use protections. Its strategic drafting aims to balance broad protection with defensibility against prior art challenges. In the fractured landscape of pharmaceutical patents, its success hinges on meticulous claim scope and the novelty of the invention.


Key Takeaways

  • The '380 patent’s strength lies in its well-defined structural claims that protect a novel chemical compound or method of use.
  • Its scope reflects a strategic balance, aiming to cover core innovations while maintaining defensibility.
  • The patent landscape indicates a competitive environment, requiring the patent holder to continually defend or expand their protection.
  • Robust claims contribute significantly to market exclusivity and licensing opportunities.
  • Monitoring potential patent challenges and filing continuation applications will be crucial to maintaining the patent’s strategic advantage.

FAQs

1. What is the primary inventive focus of the '380 patent?
It appears to protect a specific chemical compound or class with unique structural features, along with its therapeutic application and synthesis method, although the exact details require review of the full patent specification.

2. How does claim breadth influence the patent's enforceability?
Broad claims can provide extensive protection but risk invalidation if found overly general or anticipated by prior art. Narrow, well-defined claims tend to be more robust but offer limited scope.

3. Can competitors still develop similar drugs around the '380 patent?
Yes. Competitors may modify substituents, alter synthesis pathways, or use different delivery methods to design around the claims, emphasizing the importance of a comprehensive patent strategy.

4. How do patent landscape considerations impact the value of the '380 patent?
A crowded landscape with overlapping patents necessitates careful positioning. A strong patent with broad claims and strategic family filings enhances valuation and licensing potential.

5. Will the expiration of this patent affect market competition?
Yes. Patent expiration typically opens the market to generics or biosimilars, reducing exclusivity and potentially lowering prices, making patent horizon management critical.


References

  1. United States Patent and Trademark Office. Patent Database. [Link]
  2. Patent documentation and prosecution history of US Patent 11,911,380.
  3. Literature on pharmaceutical patent strategies and claims drafting.

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Drugs Protected by US Patent 11,911,380

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Oyster Point Pharma TYRVAYA varenicline tartrate SPRAY;NASAL 213978-001 Oct 15, 2021 RX Yes Yes 11,911,380 ⤷  Get Started Free TREATMENT OF THE SIGNS AND SYMPTOMS OF DRY EYE DISEASE (DED) ⤷  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 11,911,380

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2015336216 ⤷  Get Started Free
Australia 2020213351 ⤷  Get Started Free
Brazil 112017008097 ⤷  Get Started Free
Brazil 122022025737 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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