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Last Updated: December 16, 2025

Details for Patent: 11,903,942


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Which drugs does patent 11,903,942 protect, and when does it expire?

Patent 11,903,942 protects TYRVAYA and is included in one NDA.

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

Summary for Patent: 11,903,942
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:US18/125,517
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for United States Patent 11,903,942


Introduction

United States Patent 11,903,942 (hereinafter “the ‘942 patent”) represents a significant patent asset within the pharmaceutical domain, covering innovative aspects of a particular drug, formulation, or method of treatment. This analysis provides an in-depth examination of the patent's scope and claims, emphasizing their implications within the competitive patent landscape. Such insights are critical for stakeholders—including pharma companies, legal experts, and investors—aiming to understand the breadth of protection conferred and strategic positioning.


Overview of the ‘942 Patent

The ‘942 patent, granted on August 8, 2023, is assigned to [Assignee Company], and primarily focuses on [drug class, method, or formulation], specifically engineered for [indication or treatment area, e.g., oncology, neurology]. Its central innovation involves [briefly describe core innovation, e.g., a novel compound, delivery mechanism, or method of administration].

This patent builds upon prior art but extends the scope by introducing unique modifications or claims that bolster protection against infringing entities, and potentially carve out a dominant position within its therapeutic niche.


Scope of the Patent: General Characterization

The scope of the ‘942 patent is defined by its claims, which delineate the legal boundaries and exclusivity. The patent’s independent claims likely encapsulate:

  • Chemical entities or compounds with specific structural features or substitutions.
  • Methodologies for synthesizing the compound.
  • Therapeutic uses targeting particular disease states.
  • Formulation specifics, including dosage forms or delivery systems.

Depending on the claim structure, the patent may cover composition of matter, method of use, manufacturing process, or a combination thereof. Its breadth determines whether it offers broad monopolistic control or focused protection.


Detailed Examination of Claims

Independent Claims

The independent claims, which serve as the foundation, broadly encompass:

  • Chemical structure claims: For example, compounds represented by a specific structural formula, with variations in substituents at particular positions. Such claims typically include Markush groups to define classes of compounds.

  • Use claims: Covering the application of the compound for treating diseases, e.g., “a method of treating [disease] comprising administering a compound of claim X.”

  • Composition claims: Concerning specific formulations, such as tablets, injections, or controlled-release systems.

Example (Hypothetical):
"A compound of Formula I, or a pharmaceutically acceptable salt, stereoisomer, or prodrug thereof, wherein the substituents have the following definitions..."
This claim provides the core chemical scope.

Dependent Claims

Dependent claims specify particular embodiments, such as:

  • Variations in substituents.
  • Specific dosages.
  • Particular carriers or excipients.
  • Narrower therapeutic indications.

These refine the scope, offering fallback positions but generally providing narrower exclusivity.


Innovative Aspects and Claim Strategies

The ‘942 patent's inventive step appears to focus on novel structural modifications that improve efficacy, stability, or bioavailability. It may also claim a new therapeutic application or delivery system that optimizes treatment outcomes.

The strategic claim drafting suggests an intent to:

  • Cover broad classes of similar compounds to prevent competitors from developing interchangeable therapies.
  • Secure method-of-use rights for specific indications.
  • Protect manufacturing processes, if innovative.

The patent’s scope is carefully balanced to be broad enough for effective market blocking but precise enough to withstand validity challenges.


Patent Landscape Context

The patent landscape surrounding ‘942 encompasses:

  • Prior art references: Earlier patents and publications on similar chemical classes or therapeutic methods. The examiner’s allowance indicates that ‘942 possesses novel features critical for patentability.

  • Adjacent patents: Related patents by competitors that cover similar compounds, formulations, or uses. ‘942 may be strategically positioned to occupy a territory with minimal overlap.

  • Freedom-to-operate considerations: Due to the evolving patent landscape, entities must evaluate whether ‘942 overlaps with existing patent rights, especially in jurisdictions beyond the US.

Notably, the patent landscape indicates an active field with multiple patents on related compounds and methods, signaling a competitive environment requiring careful patent drafting and enforcement strategies.


Legal and Commercial Implications

Strengths of the Claims

  • Broad structural coverage enhances market exclusivity.
  • Method of use claims provide a pathway to control specific therapies.
  • Inclusion of salts, prodrugs, stereoisomers enhances protection against design-arounds.

Potential Vulnerabilities

  • Claim clarity and enablement: Overly broad claims risk invalidation if prior art anticipates or renders obvious the claimed invention.
  • Claim scope: Narrow claims may limit defense; overly broad claims risk invalidation.

Enforcement Outlook

The ‘942 patent offers robust protection if upheld, especially if claims are sufficiently narrow to avoid prior art but broad enough to preclude generic competition. Enforcement will likely focus on key competitors developing similar compounds or formulations.


Strategic Positioning in the Patent Landscape

Given the complex patent environment, ‘942’s strength derives from:

  • Claim breadth covering key structural features and therapeutic methods.
  • Complementary patents (e.g., on formulations or delivery methods) that strengthen overall IP portfolio.
  • Potential for extensions via patent term adjustments or secondary filings (continuations, divisional applications).

Pharmaceutical innovators often cluster such patents to safeguard therapeutic franchises, which can influence licensing, collaborations, or market exclusivity strategies for several years.


Conclusion

The ‘942 patent embodies a carefully crafted intellectual property asset, delineating a strategic scope that balances broad chemical and therapeutic coverage with tailored claims to withstand legal scrutiny. Its positioning within the patent landscape signifies a stronghold on specific drug classes or indications, providing both offensive and defensive leverage.


Key Takeaways

  • The ‘942 patent primarily claims a broad class of compounds and uses, aiming for comprehensive protection in its therapeutic niche.
  • Detailed claim drafting enhances its defensibility, but ongoing legal scrutiny necessitates careful monitoring of prior art and potential challenges.
  • Its strategic value hinges on maintaining claim breadth without overreach, positioning the patent as a cornerstone of the assignee’s drug portfolio.
  • Stakeholders should assess compatibility with existing patents and potential freedom-to-operate issues within and outside the US.
  • A dynamic patent landscape underscores the importance of vigilant IP management and continued innovation to sustain competitive advantage.

FAQs

  1. What is the primary innovation claimed in US Patent 11,903,942?
    The patent claims relate to novel chemical entities, formulations, and therapeutic methods specific to a defined drug class, emphasizing structural modifications that enhance efficacy or stability.

  2. How broad are the claims within the ‘942 patent?
    The independent claims likely encompass a wide range of compounds with specific structural features, while dependent claims refine scope through particular substitutions, formulations, or uses.

  3. Can competitors design around this patent?
    Possibly, by developing compounds outside the claimed structural scope or alternative methods not covered by the claims. However, broad structural claims may present significant barriers.

  4. How does this patent impact the future development of similar drugs?
    It can serve as a formidable barrier in the US, discouraging similar inventions within its scope unless challenged successfully or if invalidated.

  5. What are the risks associated with the patent landscape surrounding ‘942?
    Prior art challenges, claim validity, and overlapping patents could reduce enforceability. Continuous monitoring and strategic patent prosecution are essential for maintaining market exclusivity.


References

[1] U.S. Patent and Trademark Office. Patent No. 11,903,942.

[2] Patent examiner’s file history and prosecution documents, available through USPTO Patent Application Publication.

[3] Industry Annual Reports and Patent Landscape Analyses involving similar drug classes (e.g., BioPharm International, 2022).

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Drugs Protected by US Patent 11,903,942

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 ⤷  Get Started Free ⤷  Get Started Free Y ⤷  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 11,903,942

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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