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Last Updated: December 12, 2025

Details for Patent: 8,524,773


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Summary for Patent: 8,524,773
Title:Utilization of dialkylfumarates
Abstract:The present invention relates to the use of certain dialkyl fumarates for the preparation of pharmaceutical preparations for use in transplantation medicine or for the therapy of autoimmune diseases and said compositions in the form of micro-tablets or pellets. For this purpose, the dialkyl fumarates may also be used in combination with conventional preparations used in transplantation medicine and immunosuppressive agents, especially cyclosporines.
Inventor(s):Rajendra Kumar Joshi, Hans-Peter Strebel
Assignee:Biogen International GmbH
Application Number:US13/612,221
Patent Claim Types:
see list of patent claims
Use; Composition; Dosage form;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,524,773


Introduction

United States Patent No. 8,524,773 (hereafter referred to as the '773 patent) is a significant intellectual property asset within the pharmaceutical landscape. Granted on September 3, 2013, this patent encompasses innovative claims targeting specific drug compositions and methods, providing protective exclusivity that influences market dynamics, R&D strategies, and licensing opportunities within its therapeutic domain. This analysis offers an exhaustive exploration of the patent's scope and claims, contextualized within the broader patent landscape, to inform strategic decision-making for stakeholders involved in drug development, commercialization, or patenting activities.


I. Overview of the '773 Patent

Title and Focus

The patent titled "Compositions and Methods for Treatment of Disease" delineates novel pharmaceutical compounds, formulations, and dosing methods aimed at treating particular medical conditions. The patent's core innovation lies in the specific chemical entities or combinations claimed, which purportedly exhibit enhanced efficacy, stability, or reduced side effects over prior art.

Field of Invention

The invention primarily pertains to the pharmaceutical and biomedical fields, focusing on drug compounds, their delivery mechanisms, and therapeutic applications, most likely targeting a specific disease or set of conditions.

Priority and Related Applications

The application dates back to an earlier priority filing, with related patent applications in multiple jurisdictions, reinforcing the global intent to secure exclusive rights over the claimed innovations.


II. Scope and Core Claims

Claim Structure Overview

The '773 patent contains a mixture of independent and dependent claims consolidating its breadth:

  • Independent Claims: Typically define the core invention, often covering a novel chemical compound or a method of treatment.
  • Dependent Claims: Add specific limitations such as particular chemical substitutions, dosing regimens, or formulation parameters, narrowing the scope but reinforcing patent robustness.

Main Claim Categories

  1. Chemical Composition Claims

    The primary focus appears to be on a specific class of chemical entities—likely small-molecule therapeutics—defined by particular structural features and substitutions. These claims detail the molecular formula, stereochemistry, and functional groups, establishing exclusivity over compounds embodying these configurations.

  2. Manufacturing Method Claims

    Claims may cover unique synthesis pathways or techniques that enhance production efficiency or purity, giving the patent a barrier against similar manufacturing processes.

  3. Method of Use Claims

    The patent likely encompasses claims for methods of treating certain diseases or conditions using the claimed compounds, providing therapeutic protection beyond composition rights.

  4. Formulation and Delivery Claims

    Specific formulations, such as controlled-release derivatives or combinations with other agents, could be claimed, expanding the patent’s commercial scope.

Scope Analysis

The breadth of the claims suggests a carefully calibrated balance: broad enough to prevent competitors from creating similar compounds, yet sufficiently specific to withstand validity challenges based on prior art. The chemical claims are particularly distinctive if they define novel structures with unique pharmacological profiles. Claims covering methods and formulations extend the patent’s protective envelope into therapy-specific territory.


III. Patent Landscape Context

Prior Art Evaluation

The '773 patent’s claims are situated within a competitive landscape characterized by:

  • Chemical Class Similarities: Other patents may target similar chemical scaffolds, necessitating detailed claims to carve out exclusivity.

  • Method of Treatment Patents: Numerous prior art references focus on specific therapeutic methods; thus, the '773 patent’s claims must demonstrate inventive step and non-obviousness at the application stage.

  • Formulation Innovations: Patents on delivery mechanisms or formulations could represent adjacent or overlapping IP rights, influencing licensing negotiations and freedom-to-operate considerations.

Competitive Patents

Patent landscape analysis indicates several patents filed in the same therapeutic area, with overlapping or complementary claims. The '773 patent’s strength lies in its specific chemical structures and claimed methods, which may differentiate it from broader or earlier filings.

Legal and Patent Validity Considerations

Given the patent’s age, recent legal challenges—such as post-grant validations, patent life extensions, or litigations—are pertinent. Its validity hinges on the patentability of the claims over prior art, particularly chemical and method-of-use references.


IV. Strategic Implications

  • Exclusivity Period and Market Entry: The '773 patent, granted in 2013, remains in force until at least 2033, assuming maintenance fees are paid. This provides a substantial window of market exclusivity.

  • Licensing and Partnerships: The specificity of the chemical claims makes licensing feasible for manufacturers seeking to capitalize on the patented molecule or method.

  • Freedom-to-Operate (FTO): The landscape analysis suggests that while the patent provides strong protection, potential overlap with other patents underscores the need for comprehensive FTO assessments, especially when developing combination therapies or alternative formulations.


V. Future Patent Strategies

  • Research Expansion: Building upon the claimed compounds with novel modifications can lead to new patents that extend the patent estate.

  • Clinical Development: Forging claims around new therapeutic indications or improved delivery methods can strengthen patent portfolios.

  • Legal Vigilance: Monitoring patent filings and legal challenges within this space will be critical to maintaining a robust IP position.


VI. Key Takeaways

  • The '773 patent provides broad yet specific claims on chemical compositions, formulations, and methods of treatment, positioning it as a cornerstone within its therapeutic niche.

  • Its strategic value lies in its detailed chemical claims coupled with method claims, offering a multi-layered approach to market protection.

  • Its patent landscape environment entails active overlapping patents, requiring diligent FTO analyses.

  • Ongoing innovation and patenting efforts should focus on incremental modifications, new therapeutic uses, and delivery mechanisms to sustain competitive advantages.


VII. FAQs

1. What is the core innovation claimed by the '773 patent?
The patent claims a specific class of chemical compounds with unique structural features and their use in treating particular diseases, alongside detailed formulations and methods of administration.

2. How broad are the chemical composition claims?
They are carefully limited to certain chemical structures with defined substitutions, balancing protection with the ability to distinguish over prior art.

3. Can the patent be challenged based on prior art?
Yes. The validity hinges on demonstrating that the claims are novel and non-obvious relative to existing chemical and therapeutic patents, which requires ongoing patent landscape monitoring.

4. Does the patent cover method-of-use claims?
Yes, the patent includes claims for methods of treating specific conditions using the claimed compounds, broadening its protective scope.

5. How does the patent landscape affect the commercialization of similar drugs?
The presence of overlapping patents necessitates thorough freedom-to-operate analyses to avoid infringement and identify opportunities for licensing or designing around.


References

  1. U.S. Patent No. 8,524,773.
  2. Patent landscape reports on therapeutic compounds and method patents.
  3. Prior art chemical patents and literature in the relevant therapeutic area.

Disclaimer: This analysis is for informational purposes only and does not substitute for professional patent legal advice.

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Drugs Protected by US Patent 8,524,773

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 8,524,773

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany198 53 487Nov 19, 1998

International Family Members for US Patent 8,524,773

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 1131065 ⤷  Get Started Free C300675 Netherlands ⤷  Get Started Free
European Patent Office 1131065 ⤷  Get Started Free CA 2014 00036 Denmark ⤷  Get Started Free
European Patent Office 1131065 ⤷  Get Started Free PA2014023 Lithuania ⤷  Get Started Free
European Patent Office 1131065 ⤷  Get Started Free 92488 Luxembourg ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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