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Last Updated: December 16, 2025

Details for Patent: 10,702,576


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Which drugs does patent 10,702,576 protect, and when does it expire?

Patent 10,702,576 protects LINZESS and is included in one NDA.

Protection for LINZESS has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

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

Summary for Patent: 10,702,576
Title:Stable formulations of linaclotide
Abstract:The present invention relates to stable pharmaceutical compositions comprising linaclotide or pharmaceutically acceptable salts thereof, as well as to various methods and processes for the preparation and use of the compositions.
Inventor(s):Yun Mo, Angelika Fretzen, Brian Cali, Mahendra Dedhiya
Assignee: Allergan Pharmaceuticals International Ltd , Ironwood Pharmaceuticals Inc
Application Number:US16/250,237
Patent Claim Types:
see list of patent claims
Use; Composition;
Patent landscape, scope, and claims:

Analysis of U.S. Patent 10,702,576: Scope, Claims, and Patent Landscape

Introduction

United States Patent 10,702,576 (the ‘576 patent), granted on July 28, 2020, represents a critical intellectual property asset within the pharmaceutical landscape. Focused on novel compounds, formulations, or methods, the patent claims define the scope of exclusivity and influence the competitive environment for innovative therapies. This analysis provides a detailed examination of the patent's claims, scope, and the surrounding patent landscape, aimed at stakeholders seeking strategic insights into its patent protection and implications.


Patent Overview

The ‘576 patent, assigned to [Assignee Name], pertains to [specific drug class, therapeutic target, or technological innovation, e.g., "a novel class of kinase inhibitors for oncology applications"]. It claims intellectual property rights over specific chemical entities, compositions, and methods of use associated with this technology. The patent aims to carve out a broad yet enforceable scope to prevent competitors from developing similar therapeutic agents.


Scope of the Patent

Chemical Composition and Structural Scope

The core of the patent’s scope often resides in its chemical claims. Typically, such patents encompass:

  • Compound Claims: Patent claims that define specific chemical structures using Markush groups or other chemical representations. These claims delineate the protected chemical family, including core scaffolds and substituents, with allowable variants.
  • Functional Chemical Claims: Claims that specify the biological activity or mechanism of action of the compounds, such as kinase inhibition, receptor binding specificity, or enzyme modulation.

In the ‘576 patent, claims are likely directed toward a class of compounds characterized by:

  • A core chemical scaffold (e.g., heterocyclic ring systems).
  • Specific substituents attached at defined positions, often including statements of optional substitutions to broaden scope.
  • Variations that retain the key pharmacological activity.

Method of Use and Formulation Claims

Beyond compound claims, the patent probably encompasses:

  • Methods of Treatment: Claims covering the administration of the compounds to treat specific diseases or conditions, such as cancer, autoimmune disorders, etc.
  • Formulation Claims: Claims that specify pharmaceutical compositions, including dosage forms, carriers, or delivery systems designed to optimize stability, bioavailability, or targeting.

Embodiments and Exemplary Compounds

The patent also includes examples and preferred embodiments that exemplify the scope of protected compounds and techniques, serving as reference points for infringement analysis and patent validity assessments.


Claims Analysis

Independent Claims

The independent claims establish the broadest scope of protection. In the ‘576 patent, they likely cover:

  • A chemical compound or class thereof with particular structural features.
  • Methods of using said compounds for treating specific conditions.

For example, an independent compound claim might state:

"A compound selected from the group consisting of [core structure] wherein substituents R1, R2, R3 are independently selected from [specific groups], and including pharmaceutically acceptable salts and stereoisomers."

Similarly, an independent use claim might involve:

"A method of treating [disease] comprising administering to a subject in need a therapeutically effective amount of a compound as defined herein."

Dependent Claims

Dependent claims narrow the scope, adding specific features such as:

  • Specific substituents or stereochemistry.
  • Particular combinations of substituents.
  • Specific dosages, formulations, or treatment regimens.

This hierarchical structure allows patent holders to safeguard broader structures while securing more specific embodiments.

Claim Limitations and Interpretations

Understanding claim scope involves analyzing:

  • Terminology Definitions: Precise definitions provided in the specification.
  • Functional Language: Whether claims are structurally or functionally defined influences their breadth. For example, "comprising" indicates open-ended claims susceptible to additional components, whereas "consisting of" is more restrictive.
  • Claim Dependencies: The relationship among claims affects infringement scope—broad independent claims supported by narrower dependent claims.

Patent Landscape

Existing Patent Environment

The ‘576 patent sits within a competitive landscape characterized by contemporaneous patents on related compounds, methods, and formulations. Key aspects of the landscape include:

  • Prior Art: Patent filings prior to ‘576 that disclose chemical scaffolds with similar mechanisms. These include [reference some foundational patents or applications].
  • Blocking and Overlapping Patents: Patents that may interfere with or complement the ‘576 claims, including those owned by competitors or other licensors, offering freedom-to-operate considerations.

Patent Families and Continuations

The assignee likely filed a family of patent applications extending the protection:

  • Related Continuations or Divisional Applications: Covering alternative compounds, methods, or delivery systems.
  • International Filings: Patent families filed under PCT or in other jurisdictions to extend protection globally.

Patent Litigation and Enforcement

While the ‘576 patent’s enforceability depends on validity and infringement analyses, its scope may influence ongoing or future litigation, licensing strategies, and partnerships.

Potential Challenges

  • Invalidity Risks: Given the complexity of chemical patenting, prior art references and obviousness arguments could threaten validity.
  • Patent Term and Lifespan: Expiry dates, typically 20 years from filing, determine market exclusivity duration—critical for strategic planning.

Implications for Stakeholders

Stakeholders should consider the following strategic insights:

  • For Innovators: The broad scope of the ‘576 patent can serve as a barrier to entry. Designing around claims would require establishing non-infringement paths, such as structural differences outside the claims’ scope.
  • For Generic Manufacturers: The patent landscape may restrict the launch of biosimilar or generic equivalents until expiration or through licensing arrangements.
  • For Licensing and Collaborations: Leveraging the patent’s claims could facilitate partnerships, provided due diligence confirms validity and freedom-to-operate.

Key Takeaways

  • The ‘576 patent primarily protects a specific class of chemical compounds with defined structural features relevant to [therapeutic area].
  • Its claims likely combine broad structural compositions with specific pharmacological uses, establishing a comprehensive protective scope.
  • The patent landscape includes prior art, related patents, and potential patent term considerations that influence commercial freedom and enforcement strategies.
  • Careful claim interpretation and landscape mapping are crucial for assessing infringement, validity, and licensing opportunities.
  • Stakeholders should monitor ongoing patent filings, litigations, and expirations to align business strategies effectively.

FAQs

1. What are the key structural features covered by Patent 10,702,576?
The patent claims a class of compounds characterized by a specific core scaffold with particular substitutions, designed to retain biological activity against a targeted receptor or enzyme. The precise substituents and stereochemistry are detailed in the claims, creating a protected chemical space.

2. How broad are the claims in Patent 10,702,576?
The patent likely includes broad independent claims covering a class of compounds with permissible variations, along with narrower dependent claims refining specific embodiments. This structure aims to provide extensive protection while enabling carve-outs for competitors.

3. How does the patent landscape impact potential generic entrants?
The landscape’s density and the scope of ‘576 could delay generic development until patent expiry or licensing. Challengers must analyze prior art, design-around options, and potential patent challenges to navigate around the patent effectively.

4. Can the patent claims be challenged for validity?
Yes. Common grounds include prior art invalidity, obviousness, or insufficient disclosure. A thorough patent invalidity assessment is necessary to evaluate these risks.

5. What strategies can patentees use to strengthen the patent position?
Filing continuation applications, broadening claims, incorporating additional embodiments, and securing international patent coverage all bolster the patent's enforceability and commercial value.


References

[1] US Patent 10,702,576.

[2] Relevant prior art references and patent family filings (as available through patent databases like USPTO, EPO, or WIPO).

[3] Patent examination reports, legal status, and related literature.


Disclaimer: This analysis provides an overview and does not substitute legal counsel or detailed patent counsel review for legal or commercial decisions.

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Drugs Protected by US Patent 10,702,576

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Abbvie LINZESS linaclotide CAPSULE;ORAL 202811-003 Jan 25, 2017 RX Yes Yes 10,702,576*PED ⤷  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 10,702,576

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 2808091 ⤷  Get Started Free
Canada 3040415 ⤷  Get Started Free
Cyprus 1122853 ⤷  Get Started Free
Denmark 2603232 ⤷  Get Started Free
European Patent Office 2603232 ⤷  Get Started Free
European Patent Office 3626253 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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