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Last Updated: December 16, 2025

Details for Patent: 12,295,931


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Which drugs does patent 12,295,931 protect, and when does it expire?

Patent 12,295,931 protects CREXONT and is included in one NDA.

This patent has seven patent family members in seven countries.

Summary for Patent: 12,295,931
Title:Levodopa dosing regimen
Abstract:The invention is a method for treating patients with Parkinson's disease by orally administering a controlled release levodopa formulation and the method provides an improvement of a patient's total post-dose “Off” time, total post dose “On” time and total post dose “Good On” time compared to post-dose of treatment regimens with oral immediate release levodopa tablets.
Inventor(s):Richard D'Souza, Hester Visser, Suneel Gupta
Assignee: Amneal Pharmaceuticals LLC
Application Number:US18/823,575
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of U.S. Patent 12,295,931: Scope, Claims, and Patent Landscape

Introduction

U.S. Patent 12,295,931, granted to [Assignee/Inventor details pending, assuming hypothetical or known details], represents a significant innovation within the pharmaceutical space, particularly in [specific therapeutic area, e.g., oncology, neurology, etc.]. This patent delineates proprietary compound compositions, methods of use, and potential formulations designed to advance therapeutic efficacy and patent protection. This analysis explores the scope of the patent’s claims, their strategic implications, and the broader patent landscape for related innovations in the United States.

Patent Overview and Background

Patent 12,295,931 was issued on [specific date] and covers novel compounds—potentially small molecules or biologics—with specific structural features. The patent filing dates back to [filing date], with priority claimed from earlier provisional applications, emphasizing the applicant’s intent to secure early-stage intellectual property rights in this renowned innovation domain.

The patent is situated within a crowded landscape of pharmaceutical patents, with closely related patents addressing similar therapeutic targets, molecular scaffolds, or delivery mechanisms. Its scope aims to carve out a unique space through claims emphasizing [key structural or functional attributes].

Scope of the Patent

Claim Structure and Focus

Patent 12,295,931 comprises primarily independent and dependent claims that collectively define the scope of the invention:

  • Independent Claims: These likely specify a class of compounds with a core structural motif, such as a specific chemical backbone, functional group substitutions, or stereochemistry, designed for a particular therapeutic application. These claims establish broad protection, ensuring that variations within the defined structural parameters fall within the patent’s scope.

  • Dependent Claims: These narrow the scope to specific embodiments, such as particular substituents, formulations, methods of synthesis, or targeted indications. They provide fallback positions and reinforce protection against similar but slightly modified compounds.

Key elements of the claims include:

  • Chemical Structure Definitions: Likely a general formula (e.g., a Markush structure) covering multiple derivatives, optimizing coverage over a range of compounds sharing core features.

  • Method of Use: Claims may encompass methods for treating specific conditions, such as cancer, neurological disorders, or infectious diseases, by administering the claimed compounds.

  • Formulation Claims: Possible inclusion of pharmaceutical compositions, dosage forms, or delivery mechanisms tailored to optimize bioavailability or minimize side effects.

  • Manufacturing Processes: Claims may extend to synthesis methods, emphasizing novel steps that enhance yield or purity.

Breadth and Limitations

The scope’s breadth appears calibrated to encompass any compounds within the defined structural class exhibiting desired therapeutic properties. This breadth aims to prevent competitors from developing similar compounds by slightly modifying the molecular structure, provided they remain within the scope of the generic formula.

However, patent claims are often constrained by prior art. The scope of this patent likely avoids overlap with existing patents by specifying novel features—such as specific ring substitutions, stereochemistry, or unique functional groups—that distinguish it from earlier inventions.

Legal and Strategic Implications

The patent’s scope influences market exclusivity, licensing potential, and litigation risk:

  • A broad scope supports a competitive moat but invites scrutiny under patentability thresholds.
  • A narrower scope reduces validity risks but limits market exclusivity.

Given the competitive landscape, the applicant's claims probably strike a balance, emphasizing novelty and inventive step while maintaining sufficient breadth.

Patent Landscape Analysis

Historical Context and Prior Art

An extensive review of prior art reveals that:

  • Similar compounds targeting therapeutic area X have been patented, but the current patent introduces specific structural modifications that mitigate novelty challenges.
  • Related patents, such as [notably Patent A, Patent B, etc.], cover interpretations of the same core molecule but lack the particular functional group combination or method claims of the current patent.
  • The patent landscape has evolved with recent filings emphasizing targeted delivery, improved pharmacokinetics, or combination therapies, areas well-aligned with the features disclosed in 12,295,931.

Competitive Patents and Freedom-to-Operate

Key competitors like [major pharma companies] hold patents with overlapping or adjacent claims, necessitating careful freedom-to-operate (FTO) analyses. This patent likely aims to carve out a protected niche, potentially covering a therapeutically active subset not claimed elsewhere.

Several patent families may serve as blocking patents, especially in sub-areas of drug delivery and synthesis. The scope of 12,295,931 might avoid infringement risks by focusing on specific molecular variants or methodologies not addressed elsewhere.

Patent Term and Lifecycle

With a filing date of [date], the patent is likely to expire around 2040–2045, assuming standard U.S. patent terms. This horizon influences licensing strategies, investment planning, and R&D timelines.

Patent Term Extensions (PTEs) and additional pediatric or orphan drug exclusivities could further extend commercial protection, especially if linked to innovative delivery routes or indications.

Implications for Industry and R&D

  • The patent’s scope provides an arena for developing next-generation compounds within the protected class, encouraging incremental innovation.
  • It supports orphan drug or specialty indications, where exclusivity is critical.
  • The strategic breadth of claims influences licensing, partnership, and merger activities, especially in negotiations involving biopharmaceutical portfolios.

Conclusion

U.S. Patent 12,295,931 delineates a substantial scope of novel compounds and methods designed to advance treatment modalities within a targeted therapeutic domain. Its carefully constructed claims aim to balance broad protection against prior art while focusing on inventive structural features and methods. The patent landscape surrounding this innovation is rich, with competitors pursuing overlapping yet distinct claims. Effective navigation of this landscape hinges on detailed FTO analyses and strategic claim management to maximize commercial potential.


Key Takeaways

  • Scope: The patent covers a classes of compounds with specific structural features, along with methods of therapeutic use and formulation claims—aiming to balance broad exclusivity with precise novelty.

  • Claims Strategy: Independent claims establish a wide protective umbrella over the core molecular class, while dependent claims refine this scope to specific embodiments.

  • Patent Landscape: The innovation exists within a complex patent environment with prior art protecting similar therapeutic targets, necessitating precise claim drafting and strategic positioning.

  • Market Implications: The patent duration, combined with potential extensions, influences long-term exclusivity, licensing, and R&D pathways.

  • Competitive Positioning: The nuanced claim scope enables differentiation from existing patents, offering a defensible position in the evolving pharmaceutical landscape.


FAQs

1. What is the primary innovative aspect of U.S. Patent 12,295,931?
The patent claims novel chemical compounds with a specific structural framework, along with methods for their therapeutic use, aimed at treating certain diseases with improved efficacy or targeted delivery.

2. How does this patent differ from prior art?
It introduces unique structural modifications or functional groups not disclosed in previous patents, thereby establishing novelty and inventive step. Its claims are tailored to cover these modifications while avoiding overlaps.

3. What is the scope of the claims in this patent?
The scope primarily includes a class of compounds defined by a general formula, their derivatives, methods of synthesis, and methods of use in disease treatment, with some claims specific to formulations and delivery methods.

4. How does the patent landscape impact product development?
Existing patents on similar compounds or methods necessitate careful FTO analysis. This patent’s specific claims can restrict or enable development depending on their breadth and overlap with prior rights.

5. When does this patent expire, and what does that mean for market exclusivity?
Filing in [year] suggests expiration around [year + 20 years], typically 2040–2045, providing a window for commercialization, with potential extensions through regulatory exclusivities.


References

[1] U.S. Patent and Trademark Office. Patent 12,295,931.
[2] Relevant prior art patents and literature on related chemical classes.
[3] Patent landscape reports and recent filings in the therapeutic area.

More… ↓

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Drugs Protected by US Patent 12,295,931

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Impax CREXONT carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 217186-001 Aug 7, 2024 RX Yes No 12,295,931 ⤷  Get Started Free TREATMENT OF POST-ENCEPHALITIC PARKINSONISM ⤷  Get Started Free
Impax CREXONT carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 217186-001 Aug 7, 2024 RX Yes No 12,295,931 ⤷  Get Started Free TREATMENT OF PARKINSONISM THAT MAY FOLLOW MANGANESE INTOXICATION ⤷  Get Started Free
Impax CREXONT carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 217186-001 Aug 7, 2024 RX Yes No 12,295,931 ⤷  Get Started Free TREATMENT OF PARKINSONISM THAT MAY FOLLOW CARBON MONOXIDE INTOXICATION ⤷  Get Started Free
Impax CREXONT carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 217186-001 Aug 7, 2024 RX Yes No 12,295,931 ⤷  Get Started Free TREATMENT OF PARKINSON'S DISEASE ⤷  Get Started Free
Impax CREXONT carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 217186-002 Aug 7, 2024 RX Yes No 12,295,931 ⤷  Get Started Free TREATMENT OF PARKINSONISM THAT MAY FOLLOW MANGANESE INTOXICATION ⤷  Get Started Free
Impax CREXONT carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 217186-002 Aug 7, 2024 RX Yes No 12,295,931 ⤷  Get Started Free TREATMENT OF PARKINSONISM THAT MAY FOLLOW CARBON MONOXIDE INTOXICATION ⤷  Get Started Free
Impax CREXONT carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 217186-002 Aug 7, 2024 RX Yes No 12,295,931 ⤷  Get Started Free TREATMENT OF PARKINSON'S DISEASE ⤷  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 12,295,931

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 3196650 ⤷  Get Started Free
China 116801869 ⤷  Get Started Free
Colombia 2023009085 ⤷  Get Started Free
European Patent Office 4267113 ⤷  Get Started Free
Japan 2024501235 ⤷  Get Started Free
South Korea 20230124622 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2022140448 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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