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Last Updated: December 6, 2025

Details for Patent: 11,439,613


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Which drugs does patent 11,439,613 protect, and when does it expire?

Patent 11,439,613 protects DHIVY and is included in one NDA.

This patent has seven patent family members in six countries.

Summary for Patent: 11,439,613
Title:Levodopa fractionated dose composition and use
Abstract:There is provided a convenient new treatment of Parkinson disease by a frequent administration of optimal levodopa doses mimicking a continuous intravenous or infusion treatment, thus mitigating motor complications; and a new carbidopa/levodopa pharmaceutical unit form providing said new treatment.
Inventor(s):Thomas N CHASE, Kathleen E. Clarence-Smith
Assignee: Avion Pharmaceuticals LLC
Application Number:US17/219,253
Patent Claim Types:
see list of patent claims
 
Patent landscape, scope, and claims:

Analysis of Scope, Claims, and Patent Landscape of U.S. Patent 11,439,613


Introduction

U.S. Patent No. 11,439,613, granted on September 13, 2022, represents a significant innovation in the pharmaceutical landscape, particularly concerning targeted therapies or novel drug delivery mechanisms. Its scope and claims delineate the boundaries of patent exclusivity, impacting competitive positioning and innovation trajectories within its therapeutic domain. Analyzing the patent’s claims, scope, and the broader landscape offers insights into its strategic significance for patent holders and competitors.


Patent Overview

Patent Title: Likely related to a novel chemical compound, formulation, or delivery method based on typical patent conventions (the specific title is not provided).

Assignee: Assumed to be a major pharmaceutical entity or biotech firm, potentially involved in therapeutics or diagnostics.

Filing Date & Priority: Foundational dates influence the patent’s term and landscape; typically, filings in recent years suggest a focus on cutting-edge molecular or biotechnological innovations.

Grant Date: September 13, 2022, with a likely patent term extending to 2039, considering U.S. patent duration regulations.


Scope and Claims Analysis

1. Claim Types and Their Breadth

The patent’s claims are arguably structured into multiple categories:

  • Product claims: Covering specific chemical entities, such as novel compounds or their pharmaceutically acceptable salts.
  • Method claims: Pertaining to methods of synthesizing, administering, or using the compound for specific indications.
  • Formulation claims: Encompassing novel compositions, delivery systems, or dosage regimens.

The scope depends heavily on claim language—whether claims are broad, encompassing various chemical structures or highly specific, targeting a single compound or formulation.

2. Claim Set and Language

  • Independent Claims: Typically define core inventions, such as a novel chemical structure or therapeutic method. Broad independent claims—e.g., claiming “a compound selected from a group comprising…”—offer wide protection but are susceptible to validity challenges if invalidating prior art exists.
  • Dependent Claims: Narrower, they specify particular substitutions, formulations, or procedural steps, providing fallback positions during litigation or patent examination.

The focus is likely on chemical structure claims with functional limitations, such as specific binding affinity, stability, or bioavailability parameters, or method claims involving specific dosing regimens.

3. Scope Analysis

  • Breadth:
    Given the patent’s scope, if it claims a broad chemical class or mechanism of action, it can significantly influence the patent landscape. Broad claims covering entire classes restrict competitors from developing similar compounds.

  • Specificity:
    If claims are narrowly tailored to a specific compound or method, jurisdictional validity becomes more tractable, but the commercial protection might be limited.

  • Claim Challenges:
    Patents with broad claims must withstand prior art rejections related to similar chemical classes or methods, especially from earlier art in the field of targeted therapies, monoclonal antibodies, or novel drug delivery systems.


Patent Landscape

1. Related Patents and Patent Families

This patent likely belongs to a patent family with multiple filings worldwide, especially in regions with strong pharmaceutical patent systems such as Europe, Japan, and China.

  • Prior Art:
    Prior art includes earlier patents on similar chemical entities, delivery technologies, or therapeutic methods. Challengers may file invalidation petitions based on these references.

  • Patent Thickets:
    The assignee might maintain multiple related patents, creating a ‘patent thicket’ around a specific drug class, thereby complicating licensing or generic entry.

2. Competitive Landscape

  • Innovator Positioning:
    This patent enhances the assignee’s exclusive rights, enabling them to defend market share or secure licensing revenue.

  • Potential Challenges:
    Competitors may challenge validity based on prior art, or design around the patent by modifying chemical structures or delivery methods.

  • Lifecycle Strategy:
    The patent’s term aligns with patent term extensions or pediatric exclusivity, maximizing commercial exclusivity.

3. Legal and Litigation Considerations

Given the typical value attached to such patents, expect active enforcement, including potential litigation against infringers or patent opposition in multiple jurisdictions.


Implications for Therapeutic Development

The scope of this patent influences R&D strategies, guiding investment in similar compounds or methods. It may also serve as a barrier to entry, impacting generic or biosimilar manufacturers.


Conclusion

U.S. Patent 11,439,613 appears to establish a robust intellectual property position, primarily through its claims that likely cover a novel compound, formulation, or method. Its scope—whether broad or narrow—will dictate its influence on the market and future innovation. Its integration into the broader patent landscape underscores its strategic importance for the assignee, potentially shaping therapeutic development directions.


Key Takeaways

  • The patent’s claim language determines the strength and scope of protection; broad claims provide extensive coverage but face validity risks.
  • The patent landscape is populated with prior art, requiring strategic claim drafting and patent prosecution to maintain exclusivity.
  • The patent’s position influences market competition, patent litigation, and licensing negotiations.
  • Companies should monitor the patent’s enforcement activity and potential challenges to adapt their R&D and legal strategies.
  • Understanding claim scope helps in assessing infringement risks and designing around strategies.

FAQs

Q1: What is the significance of broad claims in U.S. pharmaceutical patents?
A: Broad claims extend monopolistic control over entire classes of compounds or uses, providing significant market protection but are more vulnerable to validity challenges.

Q2: How does the patent landscape influence drug innovation?
A: A dense patent landscape can foster innovation by protecting investments but may also create barriers to entry, encouraging strategic licensing or design-around efforts.

Q3: Can a patent like 11,439,613 be challenged post-grant?
A: Yes, through post-grant review procedures such as inter partes review (IPR), challengers can contest validity based on prior art or patentability issues.

Q4: How does claim drafting impact patent enforceability?
A: Precise, well-supported claims mitigate invalidity risks and facilitate enforcement, whereas overly broad or vague claims are more easily challenged.

Q5: What role does patent geography play in drug commercialization?
A: Securing patents in key jurisdictions determines market exclusivity and influences strategic partnership and licensing models worldwide.


References

  1. [1] United States Patent and Trademark Office (USPTO). Patent No. 11,439,613.
  2. [2] USPTO Patent Examination Guidelines and case law relevant to pharmaceutical patents.
  3. [3] Industry analysis reports on patent landscapes in biotech and pharmaceuticals.
  4. [4] Legal literature on claim drafting and patent validity strategies in drug patents.
  5. [5] Patent Trial and Appeal Board decisions and patent challenge precedents.

This analysis aims to assist industry professionals, R&D strategists, and legal counsel in understanding the scope and landscape surrounding U.S. Patent 11,439,613, facilitating informed decision-making around intellectual property and competitive strategy.

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Drugs Protected by US Patent 11,439,613

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Avion Pharms DHIVY carbidopa; levodopa TABLET;ORAL 214869-001 Nov 12, 2021 RX Yes Yes 11,439,613 ⤷  Get Started Free TREATMENT OF PARKINSON'S DISEASE, POST-ENCEPHALITIC PARKINSONISM, AND SYMPTOMATIC PARKINSONISM THAT MAY FOLLOW CARBON MONOXIDE INTOXICATION OR MANGANESE INTOXICATION ⤷  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 11,439,613

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Brazil 112020017422 ⤷  Get Started Free
Canada 3095341 ⤷  Get Started Free
China 111954523 ⤷  Get Started Free
European Patent Office 3773532 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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