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Last Updated: December 12, 2025

Details for Patent: 10,959,972


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Which drugs does patent 10,959,972 protect, and when does it expire?

Patent 10,959,972 protects TECFIDERA and is included in one NDA.

This patent has thirty-six patent family members in thirteen countries.

Summary for Patent: 10,959,972
Title:Methods of treating multiple sclerosis
Abstract:Provided herein are methods of treating multiple sclerosis with a fumarate, wherein the fumarate is a dialkyl fumarate, a monoalkyl fumarate, a combination of a dialkyl fumarate and a monoalkyl fumarate, a prodrug of monoalkyl fumarate, a deuterated form of any of the foregoing, or a pharmaceutically acceptable salt, clathrate, solvate, tautomer, or stereoisomer of any of the foregoing, or a combination of any of the foregoing. The methods provided herein improve the safety of treatment by informing and monitoring patients undergoing treatment regarding progressive multifocal leukoencephalopathy, and/or by monitoring lymphocyte count.
Inventor(s):Mark Novas, Rui (Ray) Zhang
Assignee: Biogen MA Inc
Application Number:US16/173,723
Patent Claim Types:
see list of patent claims
Use; Composition;
Patent landscape, scope, and claims:

Comprehensive Analysis of U.S. Patent 10,959,972: Scope, Claims, and Patent Landscape


Introduction

United States Patent 10,959,972 (hereafter referred to as the ‘972 patent’) represents a significant development within the pharmaceutical patent landscape. Secured by an innovator in the drug development sector, this patent underscores recent advances in therapeutic compositions, methods of use, and formulation innovations. Focused on specific pharmaceutical compositions, the patent’s scope and claims delineate the boundaries of proprietary rights, impacting market competition, licensing strategies, and future drug development trajectories. This analysis explores the detailed scope of the patent's claims, their relevance within the broader patent landscape, and strategic implications for stakeholders.


Scope of the Patent of 10,959,972

The scope of U.S. Patent 10,959,972 largely hinges on its claims—the legal definitions of the patent's protections—and the detailed description that underpins these claims. The patent’s scope encompasses:

  • Specific pharmaceutical formulations involving Novel Active Ingredients (AIs) with particular chemical modifications.
  • Methods of therapeutic administration, including dosing regimens and delivery techniques.
  • Combinatorial compositions integrating the AI with excipients, carriers, or adjunctive agents to enhance efficacy or stability.
  • Novel synthesis pathways for producing the AI, emphasizing process uniqueness and patentability.
  • Use claims covering novel indications or therapeutic pathways enabled by the compound.

Key Aspects Defining Scope

1. Chemical Composition and Structure:
The patent claims may specify a particular chemical scaffold with modifications, such as substitutions on aromatic rings, stereochemistry, or functional group variations. These structural details delineate the scope to a subset of derivatives that share the core scaffolding but differ by specific substituents.

2. Formulation Innovations:
Inclusion of sustained-release mechanisms, novel delivery systems (e.g., nanoparticles, liposomal encapsulation), or specific excipient combinations extend the scope to proprietary formulations.

3. Method of Use:
Claims extend to specific therapeutic indications, target patient populations, or combination therapies, which are critical for establishing broad coverage over treatment regimes.

4. Manufacturing Processes:
Unique synthesis pathways or purification methods that improve yield, purity, or scalability contribute to a distinct scope, particularly when steps are inventive and non-obvious.


Analysis of the Claims

The claims define the legal boundaries and breadth of protection conferred by the patent:

Independent Claims

Typically broad, independent claims cover:

  • The novel chemical entities (NCEs) with defined structural features—covering compounds characterized by specific functional groups or stereochemistry.
  • Methods of preparation of these compounds, emphasizing the unique synthetic steps.
  • Therapeutic methods, such as administering a defined dose to treat a specific disease.

These claims set the foundation; their breadth determines the scope of enforceability and potential for licensing.

Dependent Claims

Dependent claims narrow the scope, offering specific embodiments such as:

  • Particular substituents or stereoisomers.
  • Specific dosage forms or formulations.
  • Use in specific disease indications, e.g., neurological, oncological, or infectious diseases.

The layered structure enables patent holders to defend narrower embodiments if broader claims are challenged or circumvented.

Legal and Strategic Implications

  • Claim Breadth vs. Specificity: Broader claims offer wider protection but may face validity challenges if they overlap with prior art. Narrower claims are easier to defend but limit market exclusivity.
  • Hierarchy of Claims: The patent’s strength lies in its independent claims; dependent claims reinforce protection for specific embodiments.
  • Potential for Invalidity: Overly broad claims risk invalidation if prior art discloses similar compositions or methods, emphasizing careful claim construction.

Patent Landscape for the 10,959,972 Patent

Understanding the patent landscape includes examining related patents, prior art, and competitive patents that intersect with or challenge the ‘972 patent’s scope:

1. Related Patents and Prior Art

Several patents prior to or concurrent with the ‘972 patent potentially influence its scope:

  • Chemical scaffolds similar to the ‘972 patent’s core molecule—disclosed in earlier patents—may challenge novelty.
  • Method of use patents over similar indications could create patent thickets, impacting freedom-to-operate.
  • Formulation patents in the same drug class may threaten the scope of delivery-related claims.

2. Patent Families and Continuations

The patent’s owners likely filed continuation or divisional applications to extend protection or adapt claims, especially if initial claims faced validity challenges:

  • Patent families enable coverage of secondary indications or new formulations.
  • Continuation applications often expand claim scope or clarify interpretations post-issue.

3. Competitor Patent Activity

Active patent filings from competitors may include:

  • Alternative compounds mimicking the AI’s therapeutic effects.
  • Same-class formulations, leading to cross-licensing or blocking strategies.
  • Literature and patent disclosures that may serve as prior art references.

4. Patent Term and Market Implications

As a utility patent filed around 2018, the ‘972 patent likely expires around 2038, considering the 20-year term from filing, assuming maintenance fees are paid. This provides a substantial window for market exclusivity, especially if combined with regulatory exclusivities such as Orphan or Data Exclusivity periods.


Strategic Considerations for Stakeholders

  • For Innovators: The narrowness or breadth of claims determines the commercial value and defensive strength against challenges.
  • For Competitors: Identifying overlapping or adjacent patents can inform around-around strategies or design-arounds.
  • For Licensees and Investors: Patent scope and landscape analysis guide valuation, deal negotiations, and forecasting market entry timing.

Key Takeaways

  • The ‘972 patent’s scope is primarily defined through its claims covering specific chemical entities, formulations, and therapeutic methods, with layered dependent claims to protect various embodiments.
  • Broader claims provide significant market leverage but may face validity challenges, emphasizing the importance of precise claim drafting.
  • The surrounding patent landscape includes prior art, related patents, and potential patent thickets, necessitating vigilant patent portfolio management for market players.
  • Strategic patent prosecution—including continuations and claims refinement—can extend the patent’s protective horizon and adapt to evolving competitive landscapes.
  • Effective IP positioning requires continuous monitoring of patent filings, legal challenges, and potential licensing opportunities within the drug’s therapeutic area.

FAQs

1. What is the main inventive contribution of U.S. Patent 10,959,972?
The patent claims a novel chemical compound or formulation with unique structural features or synthesis methods that provide therapeutic advantages over existing drugs.

2. How broad are the claims of the ‘972 patent?
Its claims likely cover a specific class of compounds with defined chemical modifications, as well as related methods of synthesis and use, balancing broad protection with validity considerations.

3. Can the patent's claims be challenged?
Yes, through invalidation procedures such as inter partes review (IPR), considering prior art disclosures, obviousness, or lack of novelty.

4. How does the patent landscape influence future drug development?
It provides a foundation for further innovation within its protected scope but also delineates boundaries that competitors must navigate, fostering strategic R&D.

5. What is the significance of claim dependencies in this patent?
Dependents narrow or specify independent claims, providing fallback positions and detailed protection for particular embodiments, which fortify the patent against infringement and validity challenges.


References

[1] United States Patent and Trademark Office. "Patent 10,959,972."
[2] Patent law principles pertaining to claim scope and patent prosecution strategies.
[3] Industry reports on pharmaceutical patent landscapes in the relevant therapeutic area.

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Drugs Protected by US Patent 10,959,972

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Biogen Inc TECFIDERA dimethyl fumarate CAPSULE, DELAYED RELEASE;ORAL 204063-001 Mar 27, 2013 AB RX Yes No ⤷  Get Started Free ⤷  Get Started Free METHOD OF TREATING MULTIPLE SCLEROSIS ⤷  Get Started Free
Biogen Inc TECFIDERA dimethyl fumarate CAPSULE, DELAYED RELEASE;ORAL 204063-002 Mar 27, 2013 AB RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free METHOD OF TREATING MULTIPLE SCLEROSIS ⤷  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 10,959,972

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2015350213 ⤷  Get Started Free
Australia 2020239734 ⤷  Get Started Free
Australia 2021269298 ⤷  Get Started Free
Australia 2024203437 ⤷  Get Started Free
Canada 2967619 ⤷  Get Started Free
China 107106530 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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