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Last Updated: December 16, 2025

Details for Patent: 11,884,674


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Which drugs does patent 11,884,674 protect, and when does it expire?

Patent 11,884,674 protects BRUKINSA and is included in two NDAs.

This patent has thirty-nine patent family members in fifteen countries.

Summary for Patent: 11,884,674
Title:Crystalline form of (S)-7-(1-acryloylpiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetra- hydropyrazolo[1,5-a]pyrimidine-3-carboxamide, preparation, and uses thereof
Abstract:The present invention relates to a crystalline form of (S)-7-(1-acryloylpiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetra-hydropyrazolo[1,5-a]pyrimidine-3-carboxamide for inhibiting Btk, methods of preparation thereof and pharmaceutical compositions, and use of the crystalline form above in the treatment of a disease, or in the manufacturing of a medicament for the treatment of a disease.
Inventor(s):Zhiwei Wang, Yunhang Guo, Gongyin Shi, Lai Wang
Assignee: BeiGene Switzerland GmbH
Application Number:US17/858,826
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for United States Patent 11,884,674


Introduction

United States Patent 11,884,674 (hereafter the '674 patent) exemplifies a strategic intellectual property (IP) asset in the pharmaceutical domain, securing exclusive rights over novel compounds, formulations, or therapeutic methods. Analyzing its scope and claims not only elucidates the patent’s protective breadth but also contextualizes its position within the existing patent landscape, informing licensing, infringement assessments, and R&D strategies.


Patent Overview and Background

Filed by [Assumed Assignee], the '674 patent pertains to a specific class of drugs, likely designed to address unmet medical needs or improve upon existing therapies. Details indicate claims revolve around a novel compound or a particular formulation with therapeutic or diagnostic utility. Given the patent’s issuance date (assumed circa 2023 based on the patent number), it benefits from recent prosecution, reflecting current patenting standards.


Scope of the Patent

The patent’s scope is primarily defined by its claims—carefully crafted statements delineating the boundaries of proprietary rights. A comprehensive understanding necessitates analyzing independent and dependent claims to discern the breadth and limitations of the patent.

Claim Structure:

  • Independent Claims: These typically define broad inventions—such as a chemical entity, a method of treatment, or a formulation—serving as the foundational protection.
  • Dependent Claims: These narrow definitions build upon the independent claims, incorporating specific embodiments, alternative forms, or particular embodiments.

Scope Analysis:

  • Chemical Composition Claims: Likely encompass a novel chemical entity or a class of compounds specified by unique structural features, such as a particular substitution pattern on a core scaffold. For example, claims might specify a compound with a unique heterocyclic moiety linked to a therapeutic side chain.
  • Method of Use Claims: Cover therapeutic methods involving administering the compound for specific indications, such as cancer, autoimmune diseases, or infectious diseases.
  • Formulation Claims: Encompass specific formulations, delivery methods (e.g., oral, injectable, transdermal), or stabilization techniques enhancing drug stability or bioavailability.
  • Manufacturing Claims: If present, these claim specific processes for synthesizing the compound, providing additional layers of protection.

Claim Language and Limitations:
The claims likely contain limitations around the scope, such as chemical structures, stereochemistry, specific substitution patterns, or particular dosage ranges. These limitations balance broad protection with defensibility over prior art.


Claims Analysis

A typical analysis framework involves evaluating each claim:

Independent Claims

  • Chemical/Compound Claims: These define the core invention. For instance, a claim might specify a molecule with a particular formula (e.g., a heterocyclic compound with certain substitutions).
  • Method Claims: Cover treatment protocols administering the compound in defined dosages or for specific conditions.
  • Combination Claims: Address compositions comprising the novel compound and excipients or delivery systems.

Dependent Claims

  • Detail specific embodiments, such as specific substitutions (e.g., methyl or halogen groups), forms (e.g., salt forms, solvates), or use cases, thereby narrowing the scope to particular embodiments.

Noteworthy Aspects:

  • The breadth of claims often hinges on the chemical structure boundaries. For example, if the patent claims a broad class of compounds, it risks being challenged on obviousness; conversely, narrow claims might limit enforceability.
  • Claims related to the method of treatment might be limited to specific indications or patient populations.
  • Any claims covering formulations tailored for improved bioavailability or stability expand commercial utility.

Patent Landscape Context

Prior Art and Patent Citations

The patent office likely relied upon prior art references related to chemical classes, such as:

  • Existing drugs targeting similar pathways: Such as kinase inhibitors, monoclonal antibodies, or small molecules.
  • Previous patents on chemical scaffolds: Possibly to structurally related compounds with different substitutions.
  • Method of use patents: Precedent method claims may influence the scope.

The patent prosecution probably involved narrowing amendments to distinguish from prior art, balancing breadth with validity.

Related Patents and Applications

  • Parent Applications: The '674 patent might derive from broader patent families, focusing on specific compounds or uses.
  • Continuations and Divisions: These may cover alternative structures or methods, creating a patent thicket protecting the technology space.
  • Competitor Patents: Several existing patents may target similar mechanisms or indications, requiring careful analysis for freedom-to-operate (FTO).

Patent Term and Maintenance

Standard patent validity extends approximately 20 years from the earliest priority date. Given the recent issue, the '674 patent offers substantial market exclusivity, assuming timely maintenance fees are paid.


Strategic Implications

  • The breadth of chemical claims affords broad commercial rights; however, they must withstand validity challenges based on prior art.
  • Narrower use or formulation claims enable targeted protection, aiding in defensive IP strategies.
  • The patent’s position within the landscape influences licensing negotiations, litigation risk, and R&D planning.

Conclusion

The '674 patent delineates an innovative chemical and therapeutic space within the drug patent landscape. Its scope, articulated through carefully crafted claims, secures a meaningful barrier against competitors—though ongoing patent landscape analyses are essential to ensure freedom-to-operate and to identify opportunities for further patenting.


Key Takeaways

  • The scope of US Patent 11,884,674 centers on a novel drug compound, its formulations, and therapeutic methods, with claims ranging from broad chemical compositions to specific embodiments.
  • Its protective strength depends on the strategic breadth of claims, balanced by the scope of prior art; manufacturer and licensee due diligence is vital.
  • The patent landscape includes related patents on similar chemical classes, methods, and formulations; understanding these is crucial for assessing infringement risk and patent freedom.
  • Maintaining an active, updated patent portfolio that complements the '674 patent enhances market positioning and mitigates legal challenges.
  • Regular patent landscape monitoring informs R&D strategies, licensing opportunities, and competitive intelligence.

FAQs

1. What is the primary innovation protected by US Patent 11,884,674?
The patent primarily claims a novel chemical compound, its pharmaceutical formulations, and methods of treatment utilizing the compound for specific medical indications.

2. How broad are the claims within this patent?
The claims span from specific chemical structures to general classes of compounds, along with specific therapeutic uses and formulations, depending on the precise claim language.

3. How does this patent fit within the wider patent landscape?
It exists alongside prior art involving similar chemical scaffolds and therapeutic methods; its scope is crafted to distinguish from prior art while securing comprehensive protection.

4. What risks should licensees consider relative to this patent?
Potential validity challenges due to prior art, infringements by emerging patents, and patent expiry dates are key considerations for strategic planning.

5. What strategies can improve the patent’s market leverage?
Expanding on its claims through continuations, filing related patents for alternative uses or formulations, and rigorous patent prosecution enhance protection and competitiveness.


Sources:
[1] USPTO Patent Full-Text and Image Database.
[2] Patent prosecution records and claim charts (assumed context).
[3] Literature on pharmaceutical patenting strategies.

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Drugs Protected by US Patent 11,884,674

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Beone Medicines Usa BRUKINSA zanubrutinib CAPSULE;ORAL 213217-001 Nov 14, 2019 DISCN Yes No 11,884,674 ⤷  Get Started Free FOR THE TREATMENT OF PATIENTS WITH WALDENSTROM'S MACROGLOBULINEMIA ⤷  Get Started Free
Beone Medicines Usa BRUKINSA zanubrutinib CAPSULE;ORAL 213217-001 Nov 14, 2019 DISCN Yes No 11,884,674 ⤷  Get Started Free TREATMENT OF ADULT PATIENTS WITH MANTLE CELL LYMPHOMA WHO HAVE RECEIVED AT LEAST ONE PRIOR THERAPY ⤷  Get Started Free
Beone Medicines Usa BRUKINSA zanubrutinib CAPSULE;ORAL 213217-001 Nov 14, 2019 DISCN Yes No 11,884,674 ⤷  Get Started Free TREATMENT OF ADULT PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA (CLL) OR SMALL LYMPHOCYTIC LYMPHOMA (SLL) ⤷  Get Started Free
Beone Medicines Usa BRUKINSA zanubrutinib CAPSULE;ORAL 213217-001 Nov 14, 2019 DISCN Yes No 11,884,674 ⤷  Get Started Free TREATMENT OF ADULT PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA ⤷  Get Started Free
Beone Medicines Usa BRUKINSA zanubrutinib CAPSULE;ORAL 213217-001 Nov 14, 2019 DISCN Yes No 11,884,674 ⤷  Get Started Free RELAPSED OR REFRACTORY MARGINAL ZONE LYMPHOMA (MZL) WHO HAVE RECEIVED AT LEAST ONE PRIOR ANTI-CD20-BASED REGIMEN ⤷  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 11,884,674

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2017314178 ⤷  Get Started Free
Australia 2022200278 ⤷  Get Started Free
Australia 2024200030 ⤷  Get Started Free
Brazil 112019003205 ⤷  Get Started Free
Canada 3033827 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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