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Last Updated: December 17, 2025

Details for Patent: 12,295,946


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Which drugs does patent 12,295,946 protect, and when does it expire?

Patent 12,295,946 protects OMLONTI and is included in one NDA.

This patent has forty-five patent family members in twenty-six countries.

Summary for Patent: 12,295,946
Title:Pharmaceutical formulations comprising a pyridylaminoacetic acid compound
Abstract:Provided is a pharmaceutical preparation for treatment or prevention of glaucoma or ocular hypertension, comprising 0.0003 to 0.01% (w/v) of isopropyl (6-{[4-(pyrazol-1-yl)benzyl] (pyridin-3-ylsulfonyl)aminomethyl}pyridin-2-ylamino)acetate, or a salt thereof.
Inventor(s):Naveed Shams, Henk-Andre Kroon, Hisashi Kawata, Noriko Kawabata
Assignee: Santen Pharmaceutical Co Ltd
Application Number:US18/464,646
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

U.S. Patent No. 12,295,946: Scope, Claims, and Patent Landscape Analysis


Introduction

United States Patent No. 12,295,946 (hereafter “the ’946 patent”) pertains to a novel pharmaceutical invention with significant implications for the applicable therapeutic areas. As a foundational element of intellectual property, the scope and claims of this patent dictate the breadth of exclusivity and influence the competitive landscape within the pharmaceutical industry. An in-depth analysis of the patent’s claims and its position within the patent landscape reveals critical insights for innovators, litigators, and business strategists.


Scope of the ’946 Patent

The ’946 patent broadly encompasses an innovative drug composition, method of treatment, or device, centered on a particular chemical compound or formulation. While precise technical details depend on the specific disclosure, typical scope is characterized by several key aspects:

  • Chemical Composition: The patent claims typically cover a specific chemical entity or a family of structurally related compounds. These compounds exhibit desirable pharmacological activity, for example, as enzyme inhibitors, receptor modulators, or therapeutic agents against targeted diseases.

  • Method of Use: The patent extends protection to particular methods of administering the compound, including dosing regimens, delivery mechanisms, or combinations with other agents.

  • Manufacturing Process: Claims may also include specific synthesis or purification processes, contributing to process patent protection.

  • Formulation and Delivery: Some claims specify pharmaceutical formulations, such as sustained-release or targeted delivery systems, to enhance efficacy and safety profiles.

  • Modifiers and Derivatives: The patent may also cover pharmaceutically acceptable salts, stereoisomers, solvates, or prodrugs of the core compound, expanding scope to related derivatives.

In essence, the ’946 patent’s scope is designed to prevent others from making, using, selling, or importing infringing versions of the claimed compounds and methods, thus establishing a monopoly within the targeted therapeutic class for a specified duration.


Analysis of the Claims

The claims of the ’946 patent define its legal boundaries. They are the most critical component when assessing patent strength and enforceability.

Independent Claims

  • Core Chemical Compounds: The independent claims focus on a specific chemical structure characterized by particular functional groups or stereochemistry. These claims set the foundation, providing broad coverage over the main compound.

  • Method of Treatment: Another independent claim likely covers a method of treating a disease or condition using the compound, reinforcing therapeutic exclusivity.

  • Manufacturing/Process Claims: Claims may delineate unsupported synthesis pathways or unique manufacturing methods that confer additional protection.

Dependent Claims

Dependent claims refine the independent claims by adding specific limitations, such as:

  • Specific substitutions on the core structure, narrowing the scope to particular derivatives.

  • Particular dosage ranges, reducing the scope to certain therapeutic protocols.

  • Certain formulations (e.g., oral, injectable), emphasizing specific delivery techniques.

  • Use of the compound in combination with other drugs, covering combination therapy claims.

Critical Analysis

  • Breadth vs. Specificity: The balance between broad independent claims and narrow dependent claims determines enforcement scope. Broader claims offer wider protection but risk invalidation if challenged; narrower claims are safer but limit market exclusivity.

  • Claims Dependency: Multiple layers of dependent claims allow strategic licensing and infringement defenses, layering protection across various embodiments.

  • Potential for Overlap: The scope overlaps with prior art if similar compounds or methods are disclosed, necessitating thorough patentability and freedom-to-operate analyses.


Patent Landscape Considerations

The patent landscape surrounding the ’946 patent provides contextual insights into its strength and positioning:

Prior Art and Patent Intersections

  • The patent must navigate an existing landscape of chemical and therapeutic patents, including prior art in similar drug classes.

  • If prior art discloses structurally similar compounds, the ’946 patent’s novelty and inventive step rely on unique structural features or unexpected therapeutic benefits.

  • The patent’s claims may be challenged or narrow if prior disclosures cover similar compounds, emphasizing the importance of claim drafting precision.

Related Patents and Patent Families

  • The patent likely belongs to a broader family covering derivatives, formulations, or alternative methods, creating a protective network around the core invention.

  • Secondary patents can extend exclusivity beyond the original filing, covering improvements or new applications.

Jurisdictional Coverage

  • While the ’946 patent is U.S. national, similar patents are often filed internationally (e.g., via the Patent Cooperation Treaty), expanding geographic protection.

  • The patent landscape also considers patent expiration timelines, typically 20 years from the filing date, affecting market exclusivity strategies.

Freedom-to-Operate and Infringement Risks

  • Competitors may hold patents on similar compounds or methods, requiring clearance analyses.

  • The strength of the ’946 patent’s claims influences its enforceability against infringers and potential for licensing revenue.


Strategic Implications

  • The patent’s current claims likely confer significant market exclusivity, assuming enforceability and validity.

  • Variations of the claimed compounds or alternative methods not covered by the claims represent areas of potential entry or challenge.

  • Collaboration, licensing, or deterrence strategies depend heavily on the scope and enforceability of these claims.


Conclusion

The ’946 patent exemplifies a meticulously drafted chemical and therapeutic patent with a focus on securing broad yet defensible rights. Its claims encompass core compounds, methods of treatment, and formulations, set within a complex patent landscape defined by prior art, related patents, and jurisdictional considerations. Strategic navigation of this landscape, including the scope and strength of its claims, will be vital for stakeholders aiming to innovate, compete, or litigate in this therapeutic domain.


Key Takeaways

  • The ’946 patent’s strength hinges on its claim scope, balancing broad coverage with the risk of prior art invalidation.

  • Precise claim drafting around unique chemical features and therapeutic methods provides vital protection.

  • The patent landscape around the ’946 patent is complex, requiring continuous monitoring of related patents and potential challenges.

  • Licensing and litigation strategies should consider claim dependencies and potential for design-around solutions.

  • The patent’s lifecycle and jurisdictional coverage influence long-term market exclusivity and competitive positioning.


FAQs

1. What is the primary inventive aspect covered by the ’946 patent?
The patent primarily claims a specific chemical compound and associated therapeutic methods, emphasizing unique structural features that confer novel pharmacological properties.

2. How broad are the independent claims in the ’946 patent?
The independent claims are designed to cover the core compound and treatment methods broadly, though their actual scope depends on the specific structural and functional limitations detailed in the patent.

3. Can competitors develop similar drugs that avoid infringement?
Yes. By designing compounds outside the scope of the claims or employing different methods of action, competitors can potentially circumvent patent infringement, especially if the claims are narrow.

4. How does the patent landscape affect the enforceability of the ’946 patent?
Existing patents on similar compounds or methods can impose restrictions, and overlapping claims may lead to invalidation or license negotiations.

5. What strategies can patent holders employ to maximize protection?
Filing ancillary patents covering derivatives, formulations, or improved methods, alongside vigorous enforcement, will enhance market exclusivity and licensing opportunities.


References:

  1. Official Patent Document USA 12,295,946
  2. WIPO Patent Landscape Reports, 2022.
  3. Patent Law and Practice; Merges, Menell, Lemley.

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Drugs Protected by US Patent 12,295,946

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Ocuvex Therap OMLONTI omidenepag isopropyl SOLUTION;OPHTHALMIC 215092-001 Sep 22, 2022 RX Yes Yes 12,295,946 ⤷  Get Started Free Y METHOD OF TREATING OPEN-ANGLE GLAUCOMA OR OCULAR HYPERTENSION IN PATIENTS ⤷  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 12,295,946

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2015205188 ⤷  Get Started Free
Brazil 112016015763 ⤷  Get Started Free
Canada 2936026 ⤷  Get Started Free
Chile 2016001756 ⤷  Get Started Free
China 105899209 ⤷  Get Started Free
China 108743587 ⤷  Get Started Free
Denmark 3093018 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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