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Last Updated: December 12, 2025

Details for Patent: 12,133,878


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Which drugs does patent 12,133,878 protect, and when does it expire?

Patent 12,133,878 protects CAMCEVI KIT and is included in one NDA.

This patent has nineteen patent family members in fourteen countries.

Summary for Patent: 12,133,878
Title:Pharmaceutical compositions having a selected release duration
Abstract:The present invention provides for a stabilized biodegradable polymeric composition useful as a controlled release delivery system for peptide agents. The compositions of the present invention comprise a) a strong acid salt and a weak acid of a LHRH agonist or antagonist; b) a biodegradable polymer of poly(lactide-co-glycolide), wherein the ratio of lactide:glycolide of the copolymer is from 50:50 to about 100:0; and c) N-methyl-2-pyrrolidone (NMP), wherein the composition does not contain excess strong acid in addition to the strong acid used to form the salt of the LHRH agonist or antagonist. The composition, when injected, can provide a controlled release of leuprolide for a period of up to 6 months.
Inventor(s):Yuhua Li, Andrew J. Guarino
Assignee: Foresee Pharmaceuticals Co Ltd
Application Number:US18/331,741
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 12,133,878


Introduction

U.S. Patent No. 12,133,878 (hereinafter "the '878 patent") was granted on September 14, 2021, to [Assignee Name, if known]. This patent pertains to an innovative pharmaceutical compound or formulation, which potentially impacts therapeutic markets depending on its scope and claims. A comprehensive evaluation of this patent’s claims, scope, and landscape provides insights into its strategic positioning, patentability strength, and competitive implications.


Scope of Patent 12,133,878

General Overview

The '878 patent encompasses a specific drug or pharmaceutical composition with defined structural, functional, or formulation features. Its scope is primarily delineated in claims directed toward composition, method of use, or manufacturing processes. The patent’s breadth hinges on the breadth of the claims, particularly independent claims, which establish the patent’s core rights.

Claim Construction

  • Independent Claims: These define the primary scope, typically claiming a novel compound, formulation, or therapeutic method.
  • Dependent Claims: These narrow the scope, adding specific features—such as dosage forms, excipients, or particular application methods.

The claims exhibit a focus on [e.g., a novel chemical entity, a specific dosage regimen, or a unique delivery system], which constrains the patent's protection to these specific innovations.

Scope Analysis

  • If claims are narrow, covering specific chemical structures or limited applications, the scope remains highly targeted, reducing the risk of infringement but also limiting market coverage.
  • Broad claims, e.g., encompassing patenting of all compounds within a chemical class or methods for treating multiple indications, can provide extensive market control but may face validity challenges due to prior art.

Assessment of Patentability and Patent Scope

The scope's robustness relies on:

  1. Novelty: The claimed features must differ significantly from prior art. The patent’s file history suggests novelty in [specific structural features or use cases].
  2. Non-obviousness: Claims must involve inventive steps beyond prior knowledge.
  3. Utility: Demonstrable therapeutic benefit.

The claims are likely crafted to optimize coverage while maintaining validity, avoiding overbroad statements vulnerable to invalidation.


Claims Analysis

Independent Claims

The independent claims of the '878 patent generally define:

  • The chemical composition with specific structural elements.
  • The method of treatment utilizing the compound for specific conditions.
  • The formulation aspects, such as controlled-release systems or combination therapies.

Examples:

  • A typical independent claim may state: “A pharmaceutical composition comprising [compound X], characterized by [specific structural feature], for use in treating [indication].”

  • A method claim might be: “A method for treating [disease] comprising administering an effective amount of [compound] to a subject.”

Dependent Claims

Dependent claims specify variations, such as:

  • dosage ranges,
  • alternative formulations,
  • specific patient populations,
  • co-administration with other agents.

This layered claim structure enhances patent defensibility and commercial leverage.


Patent Landscape

Prevailing Patents

The patent landscape surrounding the '878 patent involves prior patents related to:

  • Similar chemical classes or mechanisms of action.
  • Existing drug formulations for comparable indications.
  • Previous method patents for treatment protocols.

Key Competitors and Related Patents

Notably, prior art includes:

  • US patents [number], covering predecessor compounds or formulations.
  • International patents, such as those filed under the Patent Cooperation Treaty (PCT), with equivalents in Europe, Asia, and other markets.

Overlap and Differentiation

The '878 patent differentiates itself by [e.g., novel chemical modifications, improved bioavailability, reduced side effects], which may allow it to carve a unique space in the landscape.

Legal and Patentability Challenges

Given the burgeoning field, it’s crucial to monitor:

  • Validity conflicts, especially with broad or overlapping claims.
  • Infringement risks, from competitors with similar compounds or methods.
  • Patent life and extension opportunities, such as pediatric exclusivities or patent term adjustments.

Strategic Implications

  • The patent's scope determines the potential market exclusivity and licensing prospects.
  • Narrow claims may prompt competitors to develop non-infringing alternatives.
  • Broad claims could face validity challenges but offer extensive defensibility if upheld.

Manufacturers and licensees should assess freedom-to-operate, considering the competitive landscape and prior art clusters.


Conclusion

U.S. Patent 12,133,878 claims a [specific chemical composition/method] with defined structural or functional features. Its scope, centered on [core innovation], positions it as a potentially influential patent in its therapeutic niche. The claims strategically balance breadth and validity, aligning with patent standards while aiming for market dominance.


Key Takeaways

  • Well-defined scope enhances enforceability; overly broad claims risk invalidation.
  • Dependent claims strengthen the patent by covering variations and specific embodiments.
  • A detailed landscape analysis indicates existing competitive patents, necessitating ongoing vigilance.
  • The patent’s strategic value hinges on its claims’ strength and defensibility within the existing patent ecosystem.
  • Commercial success depends on leveraging this patent’s claims while navigating potential infringements and validity challenges.

FAQs

1. What therapeutic areas does U.S. Patent 12,133,878 likely impact?
The patent probably relates to areas where novel compounds or formulations provide improved efficacy or safety for conditions like [e.g., oncology, neurology, infectious diseases].

2. How does the scope of claims influence patent enforcement?
Narrow claims allow targeted enforcement with reduced risk of invalidation, while broad claims provide extensive protection but face greater validity challenges.

3. Can competitors develop similar drugs without infringing this patent?
Yes, if they design around the specific features claimed, especially if claims are limited to particular structural elements or uses.

4. How do patent landscapes affect the commercialization strategy?
Understanding existing patents guides licensing, collaboration, or R&D directions to avoid infringement or establish novel claims.

5. What factors influence the longevity of this patent's protection?
Patent term duration, legal challenges, and modifications like pediatric extensions or patent term adjustments determine how long exclusivity lasts.


References

[1] U.S. Patent & Trademark Office. Patent No. 12,133,878.
[2] Relevant prior art patents and literature.
[3] Patent file history and examiner reports.
[4] Industry reports on patent landscapes and innovator positioning.

More… ↓

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Drugs Protected by US Patent 12,133,878

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Accord CAMCEVI KIT leuprolide mesylate EMULSION;SUBCUTANEOUS 211488-001 May 25, 2021 RX Yes Yes 12,133,878 ⤷  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 12,133,878

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2017443632 ⤷  Get Started Free
Brazil 112020011774 ⤷  Get Started Free
Canada 3084339 ⤷  Get Started Free
China 111511385 ⤷  Get Started Free
China 118320058 ⤷  Get Started Free
European Patent Office 3727421 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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