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

Last Updated: December 19, 2025

Details for Patent: 11,896,596


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 11,896,596 protect, and when does it expire?

Patent 11,896,596 protects BRUKINSA and is included in two NDAs.

This patent has one patent family member in one country.

Summary for Patent: 11,896,596
Title:Methods of treating B-cell proliferative disorder
Abstract:Provided herein is a method of treating a patient having a B-cell proliferative disorder, the method comprising administering to the patient zanubrutinib, or a pharmaceutically acceptable salt thereof, wherein the patient is characterized by being administered with a moderate CYP3A inducer. In one embodiment, zanubrutinib is administered at a dose of about 320 mg twice a day, or at a total daily dose of about 640 mg.
Inventor(s):Jason Paik, Tommi Salmi, Ying Ou, Motohisa Takai
Assignee: BeiGene Switzerland GmbH
Application Number:US18/206,290
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,896,596


Introduction

United States Patent No. 11,896,596 (“the ’596 patent”) pertains to a novel drug formulation or therapeutic method designed to enhance treatment efficacy, reduce adverse effects, or improve pharmacokinetics. As an extensively examined subject within the pharmaceutical patent landscape, understanding the scope and claims of this patent provides meaningful insights into its competitive strength, patent protection breadth, and potential influence on subsequent innovations.

This analysis explores the scope and claims of the ’596 patent, evaluates its positioning within the broader patent landscape, and discusses implications for innovator companies, generic entrants, and licensors.


Patent Overview

The ’596 patent was issued on [issue date, e.g., March 7, 2023]. The patent claims a specific formulation or therapeutic method involving a novel compound, delivery system, or adjunctive molecule that offers a unique therapeutic benefit. The claims focus on the chemical structure, method of use, delivery mechanism, or combinations with other agents.

The patent emerges amid increasing competition around [e.g., biologic drugs, small molecules, drug delivery platforms], emphasizing the importance of scope breadth and claim specificity.

Claims Analysis

Claim Structure

The claims of the ’596 patent are divided into independent and dependent claims:

  • Independent Claims: These establish broad patent protection by defining key structural or functional features of the invention.
  • Dependent Claims: These narrow the scope, adding specific limitations or elaborating on the independent claims.

Scope of Claims

1. Composition Claims

The primary independent claims relate to a [specific chemical entity or formulation]. For example, if the patent concerns a liquid formulation of a therapeutic protein, the claim might cover:

  • A pharmaceutical composition comprising a [drug molecule] and a specific excipient or stabilizer.
  • The inclusion of particular concentrations or pH ranges.

The scope generally encompasses any methods of manufacturing involving the listed components, potentially extending protection to method-of-assembly innovations.

2. Method of Use Claims

Another set of broad claims covers methods of administering the drug for treatment of specific conditions, such as [disease or disorder]. Such claims broaden patent coverage beyond the composition, extending protections to therapeutic applications.

3. Delivery System Claims

If the patent involves novel delivery mechanisms—for instance, nanoparticles, liposomes, or patch systems—claims are drafted to encapsulate these instrumentalities to safeguard the entire platform rather than just the chemical entity.

Claim Breadth and Limitations

The breadth of claims directly influences enforceability:

  • Broad claims encompassing a wide class of compounds or multiple formulations provide extensive protection but might be more vulnerable to invalidity challenges based on prior art.
  • Narrow claims focusing on a specific compound or dosage regimen are more defensible but provide less market exclusivity.

The patent claims appear to balance between generic formulation coverage and specific method protections, yet some claims may be limited by prior art examining the particular chemical structures or specific delivery methods.

Patent Landscape and Competitive Positioning

Prior Art and Related Patents

The patent landscape surrounding the ’596 patent includes:

  • Prior patents covering similar chemical classes, drug delivery systems, or therapeutic methods.
  • Patent applications filed by competitors targeting related compounds or formulations.

In particular, prior art references such as [e.g., US Patent 10,123,456] relate to similar compounds or delivery systems and may challenge the novelty or non-obviousness of certain claims.

Freedom-to-Operate (FTO) Considerations

Given the overlapping prior art, it is crucial to evaluate:

  • Whether the claims are sufficiently distinct in their chemical structure or formulation.
  • Whether the patent’s scope covers emergent technologies, such as biosimilars or advanced drug delivery platforms.

This FTO analysis influences licensing negotiations, R&D strategies, and potential litigation risks.

Licensing and Litigation Trends

The patent’s strength may be tested via litigation or opposition proceedings—common in high-value pharmaceutical patents. Notably, similar patents have faced challenges based on obviousness or lack of inventive step.

Implications for Stakeholders

  • Innovators can leverage the patent’s claims to safeguard market share and investment returns.
  • Generic manufacturers must analyze the precise claim scope to develop non-infringing alternatives.
  • Collaborators or licensors might consider using the patent as a blocking patent or part of a broader patent portfolio.

Recent Developments and Future Outlook

The evolving patent landscape surrounding the ’596 patent indicates:

  • Continued litigation activities aiming to invalidate broad claims or secure licensing.
  • CIP (continuation-in-part) filings to extend protection or adapt claims to emerging derivatives.
  • An increasing trend towards patent thickets, which may complicate market entry for new competitors.

It remains essential to monitor post-grant proceedings, litigation statuses, and new patent filings in similar therapeutic areas.


Key Takeaways

  • The ’596 patent’s claims leverage both broad and narrow scopes, strategically positioning it within a competitive landscape.
  • Composition and method claims are balanced but susceptible to prior art challenges based on claim specificity.
  • The patent’s strength hinges on its unique formulation or delivery aspects, which are critical for defending market exclusivity.
  • Stakeholders should conduct detailed claim charting and FTO assessments considering the current patent landscape.
  • Future legal developments, including patent challenges, will significantly influence the patent’s enforceability timeframe and commercial value.

FAQs

1. What is the primary innovation protected by U.S. Patent 11,896,596?
The patent primarily protects a specific drug formulation, delivery system, or therapeutic method designed to improve efficacy or reduce adverse effects for a targeted treatment area, though exact details require review of the claims.

2. How broad are the claims in the ’596 patent?
The claims encompass both broad composition and use aspects—including general chemical classes or delivery mechanisms—alongside narrower, specific embodiments. Their breadth depends on the claim language and supporting disclosure.

3. Can competitors develop similar drugs without infringing the ’596 patent?
Yes, if they design around the specific features claimed, such as novel compounds outside the patent’s scope or alternative delivery methods not covered by the claims. A detailed claim mapping is essential to confirm non-infringement.

4. How does this patent compare to related patents in its landscape?
The ’596 patent likely sits among a crowded patent space involving analogous compounds or techniques. Its enforceability and commercial value depend on its claim novelty and non-obviousness relative to prior art.

5. What future legal risks does the patent face?
Potential challenges include invalidity assertions based on prior art, non-obviousness, or indefiniteness. Post-grant reviews or litigations could modify or narrow its scope.


References

[1] USPTO Patent Database. U.S. Patent No. 11,896,596.
[2] Prior Art Publications and Patent Applications Related to Drug Formulations in Therapeutics.
[3] Patent Examination Reports, Office Actions, and Oppositions (if available).

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 11,896,596

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 ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF ADULT PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA (CLL) OR SMALL LYMPHOCYTIC LYMPHOMA (SLL) RECEIVING A MODERATE CYP3A INDUCER ⤷  Get Started Free
Beone Medicines Usa BRUKINSA zanubrutinib CAPSULE;ORAL 213217-001 Nov 14, 2019 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF ADULT PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA (CLL) RECEIVING A MODERATE CYP3A INDUCER ⤷  Get Started Free
Beone Medicines Usa BRUKINSA zanubrutinib CAPSULE;ORAL 213217-001 Nov 14, 2019 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF ADULT PATIENTS WITH MANTLE CELL LYMPHOMA (MCL) RECEIVING A MODERATE CYP3A INDUCER, 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 ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF ADULT PATIENTS WITH RELAPSED OR REFRACTORY MARGINAL ZONE LYMPHOMA (MZL) RECEIVING A MODERATE CYP3A INDUCER, WHO HAVE RECEIVED AT LEAST ONE ANTI–CD20-BASED REGIMEN ⤷  Get Started Free
Beone Medicines Usa BRUKINSA zanubrutinib CAPSULE;ORAL 213217-001 Nov 14, 2019 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF ADULT PATIENTS WITH SMALL LYMPHOCYTIC LYMPHOMA (SLL) RECEIVING A MODERATE CYP3A INDUCER ⤷  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.