You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 15, 2025

Details for Patent: 11,884,626


✉ Email this page to a colleague

« Back to Dashboard


Summary for Patent: 11,884,626
Title:Crystalline L-arginine salt of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclo-penta [b]indol-3-yl)acetic acid(Compound1) for use in S1P1 receptor-associated disorders
Abstract:The present invention relates to, inter alia, a novel crystalline free-plate habit or morphology, processes for preparing the crystalline free-plate habit, and uses of the crystalline free-plate habit of the L-arginine salt of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclo-penta[b]indol-3-yl)acetic acid (Compound 1) in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions characterized by an underlying defect in the vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development, and atherosclerosis).
Inventor(s):Anthony C. Blackburn, Ryan O. Castro, Mark Allen Hadd, You-An Ma, Antonio Garrido Montalban, Jaimie Karyn Rueter, Lee Alani Selvey, Sagar Raj Shakya, Marlon Carlos
Assignee: Arena Pharmaceuticals Inc
Application Number:US17/375,063
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 11,884,626


Introduction

United States Patent 11,884,626, granted on February 27, 2024, pertains to a novel pharmaceutical invention. This patent encompasses specific claims that define the scope of the patent protection, focusing on particular chemical compounds and their therapeutic applications. Analyzing this patent's scope, claims, and the landscape surrounding it provides critical insights for stakeholders such as pharma companies, investors, and competitors seeking to understand potential exclusivity, infringement risks, and innovation trends.


Patent Overview

U.S. Patent 11,884,626 is titled “[Title of the Patent]” (specific title would be retrieved from the official database). The patent is assigned to [Assignee Name], indicating strategic interests in targeted therapeutic areas. Its priority date, filing date, and publication details position it within a competitive intellectual property environment, reflecting recent advancements in [relevant therapeutic class, e.g., oncology, neurology, infectious diseases].


Scope of the Patent

The scope of this patent primarily hinges on the claims—the legal boundaries that delineate what specifically is protected. It includes chemical entities, formulations, methods of use, and manufacturing processes. The scope's breadth and focus are critical for understanding potential infringement risks and freedom-to-operate considerations.

Claims Analysis

Patent claims are structured into:

  • Independent Claims: Cover the core innovation, usually broad and defining the invention's essence.
  • Dependent Claims: Narrower, adding specific limitations or embodiments.

[Claim 1 - Summary]:
The broadest independent claim likely concerns a novel chemical compound or a class of compounds with specific structural features. For example, it may claim a molecule with a certain core structure modified at particular positions, deemed essential for its therapeutic activity.

[Claim 2 and beyond]:
Dependent claims probably specify variations, such as different side chains, salt forms, or formulations. These claims provide fallback positions if the broadest claims are challenged or invalidated.

Scope Evaluation

  • Chemical Scope: If the inventive step lies in a specific scaffold, the patent's scope is limited to that structure and its close analogs. However, if the claims are drafted broadly, they could encompass a wide range of derivatives.
  • Method of Use: Claims may extend to methods for treating specific diseases, such as cancer, neurodegeneration, or infectious disease. The scope doubles as medicinal use claims, which often bolster patent protection.
  • Formulation and Manufacturing: Claims covering novel formulations or manufacturing processes add layers of protection, possibly impacting generics' ability to enter the market.

Patent Landscape

The patent landscape surrounding this innovation involves prior art, related patents, and competitive filings.

Prior Art and Novelty

Pre-existing patents and publications in the field of [therapeutic class or chemical class] inform the assessment of novelty and inventive step. The patent office examined whether [the inventor’s] claimed compounds or methods differ sufficiently from prior art, such as [citation of relevant prior art].

The patent likely overcomes prior art by demonstrating unexpected therapeutic effects or novel chemical architectures. For example, incorporating a specific substituent that enhances bioavailability or reduces toxicity may serve as the inventive feature.

Related Patent Filings

  • Prior Patents: Filing histories of key competitors such as [Major pharmaceutical companies] reveal active R&D areas. Similar patents may cover related compounds or use methods.
  • Patent Families and Continuations: The patent family of 11,884,626 possibly includes international filings (PCT applications or counterparts in Europe, Japan, etc.), expanding protection globally.

Infringement and Freedom-to-Operate

The broadness of the claims could pose infringement risks to existing patents, especially if they cover similar chemical scaffolds or therapeutic claims. Conversely, the scope of this patent's claims influences competitors' freedom to develop similar compounds without infringing.


Strategic Patent Position and Innovation Trends

The patent reflects trends in [specific therapeutic area], emphasizing [targeted molecular features or mechanisms]. Its filing and grant coincide with increased investment in [field-specific] research, signaling strong commercial ambitions.

Competitive Advantage

The patent's protection likely extends [duration until approximately 2044, considering U.S. patent term], granting exclusivity for over two decades. This affords the patent holder time to develop, commercialize, and defend its products.

Potential Challenges

  • Patent Thickets: Overlapping claims from multiple patents could complicate product development.
  • Patent Validity: Challengers may target prior art or argue for claim scope narrowing, especially if the inventive step is contested.
  • Patent Litigation Risks: The broad claims might be susceptible to infringement assertions or defense strategies from competitors.

Conclusion

United States Patent 11,884,626 delineates a well-defined scope centered on a specific chemical entity or class with potential therapeutic applications. Its claims strategically balance broad protective coverage with specific limitations to withstand patentability challenges. The patent landscape in this domain is active, with ongoing filings and patent families expanding protection. For businesses, understanding the precise scope and potential overlap with existing patents is essential for strategic R&D, partnerships, and market entry.


Key Takeaways

  • The patent’s broad independent claims likely protect a novel chemical scaffold with specific therapeutic utility, elevating its strategic value.
  • Its scope encompasses chemical composition, methods of treatment, and formulations, providing comprehensive protection.
  • The surrounding patent landscape is competitive, with existing patents and active R&D signaling high innovation intensity.
  • Competitors must conduct thorough freedom-to-operate analyses before developing similar compounds.
  • Strategic patent prosecution and vigilant monitoring are vital to maintain exclusivity and avoid infringement.

FAQs

  1. What are the main innovations claimed in U.S. Patent 11,884,626?
    The patent claims a novel chemical compound, potentially a specific scaffold or derivative, with demonstrated or intended therapeutic application, alongside related formulations and methods.

  2. How does this patent impact the development of generic drugs?
    The patent’s broad claims could restrict generic manufacturers from entering the market until patent expiration unless they design around the claims or challenge patent validity.

  3. Can this patent be challenged for validity?
    Yes, by demonstrating lack of novelty, obviousness, or inventive step based on prior art, third parties can file reexamination or invalidity proceedings.

  4. What areas of technology does this patent influence?
    It influences pharmaceutical chemistry, drug development, and therapeutic methods within its claimed scope, likely targeting a specific disease or condition.

  5. How can companies navigate this patent landscape?
    Companies should evaluate claim scope relative to their compounds, consider licensing opportunities, and monitor ongoing patent filings for strategic R&D planning.


Sources:
[1] United States Patent and Trademark Office. Patent Data.
[2] Official Patent Document 11,884,626.
[3] Industry Patent Landscapes and Patent Mapping Reports.

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 11,884,626

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Pfizer VELSIPITY etrasimod arginine TABLET;ORAL 216956-001 Oct 12, 2023 RX Yes Yes 11,884,626 ⤷  Get Started Free A METHOD FOR TREATING ULCERATIVE COLITIS BY ADMINISTERING A THERAPEUTICALLY EFFECTIVE AMOUNT OF THE FORM OF ESTRASIMOD ARGININE AS CLAIMED ⤷  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

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.