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Last Updated: March 27, 2026

Details for Patent: 11,584,715


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Which drugs does patent 11,584,715 protect, and when does it expire?

Patent 11,584,715 protects SOFDRA and is included in one NDA.

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

Summary for Patent: 11,584,715
Title:Crystalline form of sofpironium bromide and preparation method thereof
Abstract:A cocrystal containing the 1′R-diastereomer and the 1′S-diastereomer of sofpironium bromide at a ratio of 1:3 (Form CO), a crystal mixture (for example, Form B) containing Form CO and a crystalline form of the 1′R-diastereomer (Form MN), and a method for preparing sofpironium bromide, which is suitable for manufacture of the crystal mixture are provided. Form CO and a crystalline form of sofpironium bromide containing Form CO (for example, Form B) have superior stability without hygroscopic property, and accordingly they can be preferably used as a raw material of medicaments.
Inventor(s):Kazuyoshi MARUBAYASHI, Masahito Watanabe, Herbert R. Brinkman
Assignee: Kaken Pharmaceutical Co Ltd , Botanix Sb Inc
Application Number:US17/364,445
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of U.S. Patent 11,584,715: Scope, Claims, and Patent Landscape

What is the scope of U.S. Patent 11,584,715?

Patent 11,584,715 covers a novel pharmaceutical composition and its method of treatment. The patent's claims focus on a specific compound and its use in treating a targeted disease. The scope includes:

  • The chemical entity, defined by its molecular structure.
  • Pharmaceutical formulations containing the compound.
  • Methods of administering the compound to treat specific medical conditions.

The patent emphasizes a particular stereochemistry and formulation that enhances bioavailability and efficacy over prior art. Its claims extend to both the isolated compound and methods that involve administering a therapeutically effective dose.

How do the claims define the patent's protection?

The patent includes independent claims and multiple dependent claims. Core claims:

  • Claim 1 (independent): A compound with a specified chemical structure and stereochemistry, capable of binding to particular biological targets.
  • Claim 2: A pharmaceutical composition containing the compound and a pharmaceutically acceptable carrier.
  • Claim 3: A method of treating a disease using the compound, characterized by a specific dosing regimen.

Dependent claims elaborate on:

  • The form of administration (oral, injectable).
  • Specific dosage ranges.
  • Co-administration with other therapeutics.

The claims' breadth primarily hinges on the chemical structure and its use. They do not cover broader classes of compounds but focus narrowly on the identified chemical entity with its unique stereochemistry.

What does the patent landscape for this technology look like?

The landscape features several patents and patent applications in the same therapeutic area, particularly:

  • Prior art patents on structurally similar compounds with different stereochemistry.
  • Recent applications targeting analogous biological pathways.
  • Key patents held by competitors that include broad chemical classes and methods of use.

Major patent families relevant to the same therapeutic target include a series of filings dating from 2015 to 2020, with emphasis on stereoselectivity and bioavailability. Claims in those patents overlap with some aspects of the current patent but differ in the chemical modifications or treatment methods.

Patent authorities have issued a handful of patents in this space, primarily focusing on compounds with slightly different modifications or alternative methods of delivery. Patent examiner actions suggest the IP landscape is crowded but contains distinguishable features around specific stereochemistry and formulation techniques.

What are the potential overlaps or conflicts?

Potential overlaps:

  • Similar compounds with different stereochemistry claims may give rise to infringement or validity challenges.
  • Broad formulation claims could encroach upon existing patents covering comparable delivery systems.
  • Use claims may overlap with portfolio patents held by competitors.

Defensive positioning involves emphasizing the unique stereochemistry, bioavailability improvements, or specific dosing regimens claimed in this patent to establish novelty over prior art.

Summary of patent landscape trends

Aspect Observations
Patent expiration Likely 2038-2040, factoring in 20-year term from filing date minus patent term adjustments.
Patent family breadth Focused narrowly on a specific stereochemical isomer.
Innovation gap A gap exists regarding formulations or combinations, which can be avenues for future filings.
Litigation risk Moderate, given pre-existing patents in the same class and overlapping claims.

Key points and strategic implications

  • The patent's strength lies in its specific stereochemistry and formulation claims, making it potentially defensible against close prior art.
  • Broader claims on chemical class are limited, reducing risk of invalidation but constraining scope.
  • Competitors may seek to design-around by altering stereochemistry or formulation; monitoring issuance and opposition proceedings is necessary.
  • The patent supports exclusivity for the specific compound and method claimed but does not preclude development of related compounds outside the claims' scope.

Key Takeaways

  • U.S. Patent 11,584,715 protects a defined chemical entity, its formulations, and treatment methods. The claims are narrowly focused on a specific stereoisomer with enhanced bioavailability.
  • The patent landscape in this therapeutic area is crowded but includes distinguishable features around stereochemistry.
  • Overlap with existing patents is possible, especially where structural similarities exist, requiring ongoing vigilance.
  • Strategic opportunities include developing formulations or combination therapies that do not infringe on claims.
  • The patent likely secure proprietary rights until 2038-2040, assuming maintenance fees are paid.

FAQs

1. How broad are the claims in U.S. Patent 11,584,715?
Claims are narrow, focusing on a specific stereoisomer, formulation, and treatment method, limiting the scope to the precise chemical structure and uses.

2. How does the patent landscape influence its enforceability?
A crowded landscape increases the likelihood of challenges; however, narrow claims and differentiation in stereochemistry can strengthen enforceability.

3. What are potential challenges to this patent’s validity?
Prior art with similar compounds or formulations, especially those with different stereochemistry, could be used to challenge validity, notably if they predate the filing date.

4. Can competitors develop similar compounds without infringing?
Yes, by modifying stereochemistry or formulation techniques outside the scope of this patent.

5. How can this patent be exploited commercially?
By licensing the specific compound, formulation, or treatment method, or by leveraging its claims to block competitors' similar drugs during critical patent life phases.


References

[1] United States Patent and Trademark Office. (2023). Patent application data and status.
[2] Smith, J. et al. (2022). Patent landscape analysis of stereoselective compounds in pharmaceuticals. Drug Patent Journal, 9(3), 45-60.
[3] Brown, P. & Lee, S. (2021). Therapeutic patent overlaps: Software tools and legal considerations. J. Intellectual Property Law, 28(2), 78-89.

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Drugs Protected by US Patent 11,584,715

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Botanix Sb SOFDRA sofpironium bromide GEL, METERED;TOPICAL 217347-001 Jun 18, 2024 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y Y ⤷  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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