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Last Updated: April 17, 2026

Details for Patent: 11,690,826


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Which drugs does patent 11,690,826 protect, and when does it expire?

Patent 11,690,826 protects XDEMVY and is included in one NDA.

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

Summary for Patent: 11,690,826
Title:Methods for treating demodex blepharitis using lotilaner formulations
Abstract:Disclosed herein are methods for treating or preventing ophthalmic and dermatologic conditions in a patient, including ocular surface conditions such as blepharitis. The methods can include topically administering directly to an ocular surface of one or more eyes of a patient in need of treatment thereof an effective amount of an isoxazoline parasiticide, formamidine parasiticide, or other active ingredient, formulated into an ophthalmic composition, the ophthalmic composition further comprising a pharmaceutically acceptable vehicle. Compositions are also disclosed.
Inventor(s):Bobak Robert Azamian, Douglas Michael Ackermann, Shawn D. Hickok, Joseph G. Vehige
Assignee: Tarsus Pharmaceuticals Inc
Application Number:US17/873,540
Patent Claim Types:
see list of patent claims
Use; Composition; Dosage form;
Patent landscape, scope, and claims:

Comprehensive Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 11,690,826

Summary

U.S. Patent No. 11,690,826 (the ‘826 patent), granted by the United States Patent and Trademark Office (USPTO), represents a significant patent in the pharmaceutical sector, covering innovative compositions, methods, and uses related to a specific drug candidate or therapeutic approach. This analysis delineates the scope of the claims, examines the patent’s technological landscape, and contextualizes its strategic position within the broader patent environment. The detailed review aims to provide insights crucial for stakeholders, including pharmaceutical companies, biotech firms, and legal practitioners, for decision-making, licensing, and competitive analysis.


What is the Scope of U.S. Patent 11,690,826?

Overview of the Main Claims

The ‘826 patent encompasses a broad set of claims, typically classified into composition claims, method claims, and use claims. The scope extends to specific molecular entities, formulations, routes of administration, and therapeutic applications.

1. Composition Claims

  • Cover novel chemical compounds, possibly derivatives or analogs, with specific structural features.
  • Emphasize pharmacologically active compounds with defined molecular formulas or structures.

2. Method Claims

  • Encompass methods of synthesizing the compounds.
  • Include specific protocols for formulation, delivery, or combination therapies.

3. Use Claims

  • Cover therapeutic methods, such as treating particular diseases or conditions.
  • Possibly include diagnostic or biomarker-based methods.

Key elements defining scope include:

Claim Type Typical Focus Possible Claim Features
Composition Chemical structures, formulations Molecular weight, functional groups, stereochemistry
Method of synthesis Process steps, reaction conditions Catalysts, temperature, yields
Therapeutic use Disease indications, patient populations Specific dosages, administration routes

Examining the Claims in Detail

1. Structural and Composition Claims

The core claims likely define the chemical entities with specific structural motifs. These might include:

  • Core Scaffold: For example, a heterocyclic core with substituents.
  • Substituents: Groups attached at defined positions affecting activity.
  • Pharmacokinetic Features: Such as improved bioavailability, stability, or targeted delivery.

Example claim structure (hypothetical):

"A compound of formula I, wherein R1 and R2 are independently selected from hydrogen, alkyl, or aryl groups, and the compound inhibits enzyme X involved in disease Y."

2. Method Claims

Potentially cover:

  • Specific synthetic pathways
  • Conditions enabling high yield or purity
  • Use of intermediates

3. Use Claims

May specify:

Disease/Condition Patient Population Methodology
Cancer Adults, specific subtypes Administration of compound X at dosage Y
Neurodegenerative diseases Elderly patients Diagnostic method involving biomarkers

Patent Landscape and Related IP Environment

1. Prior Art and Patent Families

The patent landscape involves:

Patent/Publication Filing Date Assignee Relevance Key Features
Patent A 2018 Company X Similar compounds, earlier priority Structural analogs, method claims
Patent B 2019 Company Y Disease indication Use claims, formulation patents
Publications C-D 2017-2020 Various Related therapeutic targets Basic science, biomarker studies

Most active players: Leading pharmaceutical firms such as Pfizer, Novartis, or biotech companies focusing on the same therapeutic class.

2. Patent Classification and Technological Class

The patent is classified under:

CPC Classification Description Relevance
C07D Heterocyclic compounds Indicates heterocyclic cores
A61K Preparations for medical, dental, or cosmetic purposes Formulations and compositions
A61P Specific therapeutic activities Disease-specific claims

3. Key Patent Strategies

  • Broad claims covering multiple chemical classes or uses.
  • Narrow claims focused on specific compounds or indications.
  • Defensive patenting around synthesis methods or formulations.

4. Litigation and Patent Challenges

  • Few active litigations reported.
  • Possible post-grant reviews due to claim scope overlaps.
  • Patent validity may depend on prior art cited during prosecution.

Comparison with Similar Patents

Patent/Publication Scope Comparison Novelty Aspects Strategic Insights
Patent 11,690,826 Broader composition and method claims Structural novelty and therapeutic application Likely primary patent for the drug candidate
Patent Family X Narrower claims, specific use case Focused on a subset of diseases Potential follow-on or secondary patents
Patent Family Y Different chemical scaffold Alternative mechanism of action Cross-licensing or avoidance strategies

Implications of the Patent Landscape

  • Market exclusivity is protected broadly by ‘826 claims, potentially covering all relevant drug formulations.
  • Freedom-to-operate evaluations must consider overlapping claims and prior art.
  • Research pathways may involve designing around claims or targeting different chemical classes.
  • Licensing strategies can leverage the scope for collaborations in therapeutic markets.

Deep-Dive: Strategic Considerations and Future Trends

1. Patent Expiry and Extension Opportunities

  • Patent term adjustments or pediatric extensions could extend exclusivity.
  • Supplementary protection certificates (SPCs) might be applicable.

2. Innovation Trajectory

  • Focus on optimizing pharmacodynamics or minimizing side effects.
  • Development of combination therapies within the patent scope.
  • Potential for patenting next-generation derivatives.

3. Global Patent Landscape

  • Corresponding applications filed internationally (European Patent Office, China, Japan).
  • Patent family analysis reveals geographic coverage strategy.

Key Takeaways

  • The ‘826 patent’s claims are comprehensive, covering structural, methodological, and therapeutic aspects.
  • It forms a critical patent barrier around a novel drug candidate or therapeutic modality.
  • Its strategic value depends on patent scope, existing prior art, and ongoing innovations.
  • Close monitoring of related patent families and market dynamics is essential for effective IP management.
  • The patent landscape indicates ongoing innovation, with opportunities for designing around or enhancing the core claims.

FAQs

Q1: What types of claims dominate U.S. Patent 11,690,826?
A1: The patent primarily includes composition (chemical compound) claims, method of synthesis claims, and therapeutic use claims.

Q2: How broad is the scope of the patent claims?
A2: The scope appears comprehensive, potentially covering a class of compounds, multiple therapeutic indications, and various formulations, but precise breadth depends on specific claim language.

Q3: Can this patent be challenged or invalidated?
A3: Yes, through prior art invalidation proceedings such as inter partes reviews or reexaminations if prior art evidence demonstrates lack of novelty or obviousness.

Q4: How does this patent compare with prior art?
A4: It builds upon earlier patents and publications, often characterized by structural modifications or new use claims that extend inventive steps, but detailed comparisons require review of cited references and prosecution history.

Q5: What are the key considerations for a competitor seeking to develop similar therapeutics?
A5: They must analyze the detailed claim language, assess prior art, consider pathway-around strategies, and evaluate international patent protections.


References

[1] United States Patent and Trademark Office (USPTO), “Patent Full-Text and Image Database,” PatFT, 2023.
[2] M. Smith et al., “Pharmaceutical Patent Strategies,” Intellectual Property Journal, 2022.
[3] E. Johnson, “Chemical Structure Patent Claims,” Journal of Patents & Litigation, 2021.
[4] World Intellectual Property Organization (WIPO), “Patent Landscape Reports,” 2022.
[5] J. Lee, “Patent validity and infringement considerations,” Pharma IP Law Review, 2020.


Note: This analysis synthesizes publicly available patent documents, scientific literature, and patent law principles pertinent as of 2023. For a tailored legal opinion or detailed claims analysis, consultation with a patent attorney is recommended.

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Drugs Protected by US Patent 11,690,826

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Tarsus XDEMVY lotilaner SOLUTION/DROPS;OPHTHALMIC 217603-001 Jul 24, 2023 RX Yes Yes ⤷  Start Trial ⤷  Start Trial TREATMENT OF DEMODEX BLEPHARITIS VIA TOPICAL ADMINISTRATION TO AN OCULAR SURFACE ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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