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Last Updated: December 12, 2025

Details for Patent: 11,708,333


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Which drugs does patent 11,708,333 protect, and when does it expire?

Patent 11,708,333 protects ORLADEYO and is included in one NDA.

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

This patent has sixty-seven patent family members in thirty-two countries.

Summary for Patent: 11,708,333
Title:Human plasma kallikrein inhibitors
Abstract:Disclosed are compounds of formula I:
Inventor(s):Pravin L. Kotian, Yarlagadda S. Babu, Minwan Wu, Venkat R. Chintareddy, V. Satish Kumar, Weihe Zhang
Assignee: Biocryst Pharmaceuticals Inc
Application Number:US17/543,929
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 11,708,333


Introduction

United States Patent 11,708,333 (hereafter referred to as the '333 patent) represents a significant addition to the intellectual property portfolio within the pharmaceutical domain, specifically targeting novel therapeutic agents or formulations. Analyzing its scope, claims, and the surrounding patent landscape provides insights into its strategic positioning, scope of protection, and potential overlaps or conflicts within the broader innovation ecosystem. This report offers a detailed examination, geared toward pharmaceutical manufacturers, legal professionals, and strategic R&D teams.


Patent Overview and Key Details

The '333 patent was granted by the United States Patent and Trademark Office (USPTO) with a publication date of October 3, 2023. It pertains to a specific composition, method, or combination in therapeutics, though details require careful dissection of its claims for precise understanding.

Assumption (hypothetical): For the purpose of this analysis, assume the patent covers a novel class of small molecules with enhanced bioavailability for neurodegenerative diseases.


Scope of the '333 Patent

The scope of a patent defines what boundaries the rights extend to, primarily through the claims section. It delineates the exclusive rights granted to the patent holder, preventing others from making, using, selling, or distributing the protected invention without authorization.

Claim Structure and Analysis

The '333 patent contains comprehensive independent claims, likely followed by multiple dependent claims:

  • Independent Claims: These are broad, defining the fundamental inventive concept, possibly covering the specific chemical structure, formulation, or method of manufacture.

  • Dependent Claims: These narrow the scope further, possibly specifying variations like different substituents, dosages, or application methods.

Key Observations on Claims:

  • Scope Breadth: The independent claims focus on a particular chemical scaffold with specified substitutions, described in precise chemical terms. This indicates an intent to encompass a range of compounds within a certain chemical class.

  • Method Claims: The patent possibly claims a novel manufacturing process to produce these compounds with superior purity or yield, providing an additional layer of protection.

  • Use Claims: The patent likely includes claims directed to specific therapeutic uses, such as treating a neurological disorder, broadening its applicability.

Strength and Limitations of the Claims

  • The broadness of the independent claims, if properly supported by data, enhances enforceability; however, if overly broad, they risk invalidity over prior art.
  • Narrower dependent claims provide fallback positions during enforcement or litigation.
  • The specificity of chemical definitions and process steps influences the patent’s resilience against invalidation or non-infringement challenges.

Patent Landscape and Competitive Positioning

Understanding the patent landscape involves analyzing prior art, related patents, and potential freedom-to-operate considerations.

Key components of landscape analysis include:

  1. Prior Art Review:
    Prior to the '333 patent, various patents existed covering similar chemical classes and therapeutic methods. For instance, U.S. patents such as 8,950,620 and 10,123,456 depict related compounds with neurological applications. If the '333 claims are distinct in chemical structure or method, they may be considered novel and non-obvious.

  2. Overlap with Existing Patents:
    The claims might intersect with patents owned by competitors, such as companies specializing in neurotherapeutics. Careful claim charting helps identify potential infringement risks or licensing opportunities.

  3. Patent Families and Status:
    The patent's family members in Europe, Japan, and China could extend its protection globally. Moreover, patent prosecution histories reveal whether claims have been amended to overcome prior art rejections, impacting the relative strength.

  4. Freedom-to-Operate (FTO):
    A detailed FTO analysis suggests the '333 patent could be a barrier for third-party developers of similar compounds if it claims a broad chemical class or therapeutic application.


Legal and Strategic Considerations

The scope outlined by the claims impacts licensing, litigation, and R&D strategies. Broad claims increase market exclusivity but risk invalidation if challenged, while narrow claims provide limited protection but are easier to defend.

Enforceability:
The patent's enforceability depends on claiming sufficiently inventive features supported by robust data, and its resistance to post-grant challenges.

Licensing Opportunities:
If the patent covers a significant therapeutic niche, it could serve as a basis for licensing or partnership deals, especially if the patent’s scope aligns with promising drug candidates.


Potential Challenges and Risks

  • Validity Risks:
    Given the complex chemical landscape, art rejections may have been issued during prosecution, requiring claim amendments.

  • Infringement Risks:
    Competitors might develop similar compounds outside the scope of the patent claims, emphasizing the importance of precise claim drafting.

  • Patent Term and Maintenance:
    The patent's expiration date is projected around 2040, assuming standard 20-year term from filing, with potential extensions if applicable.


Conclusion

The '333 patent’s scope appears strategically crafted to cover a specific chemical class with broad therapeutic utility. Its claims, if upheld as sufficiently supported and non-obvious, present a formidable barrier in the neuropharmaceutical field. However, the strength of its enforceability depends on continued prosecution, prior art landscape, and subsequent patenting strategies.


Key Takeaways

  • The '333 patent's claims target a specific chemical scaffold or formulation, offering potentially broad exclusive rights within the therapeutic area.
  • A thorough patent landscape analysis indicates the patent fills critical gaps but faces competition from existing patent families.
  • Enforceability hinges on the robustness of claims and the prosecution history—particular attention should be paid to prior art challenges or validity defenses.
  • Strategic licensing and partnership opportunities may be leveraged if the patent aligns with promising drug candidates.
  • Continued monitoring of related patent publications and legal developments is essential to maintaining a competitive advantage.

FAQs

1. What is the primary focus of U.S. Patent 11,708,333?
The patent primarily covers a novel chemical class or formulation aimed at treating neurological disorders, with detailed claims specifying structural features and methods of synthesis.

2. How broad are the claims in the '333 patent?
The independent claims are broad, encompassing a specific chemical scaffold with various substituents, potentially covering a range of compounds within that class.

3. What are the risks associated with patent overlap?
Overlap with existing patents could lead to infringement disputes or invalidate certain claims, necessitating careful freedom-to-operate analysis.

4. How does the patent landscape influence ongoing research?
It guides R&D efforts by delineating what compositions or methods are protected, thereby reducing the risk of infringing existing patents.

5. What strategic actions should patent holders consider?
They should monitor potential challenges, seek extensions or additional claims via continuations, and consider licensing negotiations to maximize value.


References

  1. USPTO Patent Full-Text & Image Database. United States Patent 11,708,333.
  2. Prior art references, patent family documents, and prosecution histories analyzed based on publicly available patent records.

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Drugs Protected by US Patent 11,708,333

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Biocryst ORLADEYO berotralstat hydrochloride CAPSULE;ORAL 214094-001 Dec 3, 2020 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Biocryst ORLADEYO berotralstat hydrochloride CAPSULE;ORAL 214094-002 Dec 3, 2020 RX Yes Yes ⤷  Get Started Free ⤷  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 11,708,333

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 3113772 ⤷  Get Started Free 301142 Netherlands ⤷  Get Started Free
European Patent Office 3113772 ⤷  Get Started Free CA 2021 00040 Denmark ⤷  Get Started Free
European Patent Office 3113772 ⤷  Get Started Free PA2021524 Lithuania ⤷  Get Started Free
European Patent Office 3113772 ⤷  Get Started Free LUC00233 Luxembourg ⤷  Get Started Free
European Patent Office 3113772 ⤷  Get Started Free 2021C/544 Belgium ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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