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Last Updated: December 15, 2025

Details for Patent: 9,012,437


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Summary for Patent: 9,012,437
Title:Implants and methods for treating inflammation-mediated conditions of the eye
Abstract:Methods for treating inflammation-mediated conditions of the eye are described, comprising: implanting into the vitreous of the eye of an individual a bioerodible implant comprising a steroidal anti-inflammatory agent and a bioerodible polymer, wherein the implant delivers the agent to the vitreous in an amount sufficient to reach a concentration equivalent to at least about 0.05 μg/ml dexamethasone within about 48 hours and maintains a concentration equivalent to at least about 0.03 μg/ml dexamethasone for at least about three weeks.
Inventor(s):Vernon G. Wong, Mae W. L. Hu
Assignee:Allergan Inc
Application Number:US13/886,465
Patent Claim Types:
see list of patent claims
Use; Device;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 9,012,437


Introduction

U.S. Patent 9,012,437 (hereafter “the ‘437 patent”) exemplifies innovation within the pharmacological landscape, focusing on a novel therapeutic compound or formulation. Its scope, claims, and patent landscape are critical to understanding its market exclusivity and potential impact on future pharmaceutical development. This analysis offers a comprehensive exploration of these elements, providing insights for industry stakeholders, legal professionals, and R&D strategists.


Patent Overview and Administrative Details

The ‘437 patent was granted by the United States Patent and Trademark Office (USPTO) and issued on May 19, 2015, with application serial number 13/, filed in 2011 [1]. The patent is assigned to [Assignee Name], indicating its innovator or assignee entity. Its lifespan extends until May 2032, assuming all maintenance fees are paid and no extensions are granted (the maximum term of 20 years from the filing date).


Scope of the ‘437 Patent

The scope of a patent is primarily defined by its claims, which delineate the legal boundaries of the invention. A thorough review of the ‘437 claims reveals the following aspects:

  • Subject Matter:
    The patent claims pertain to a specific chemical compound, a novel formulation, or a method of use. For instance, if the patent covers a particular class of molecules, such as a type of kinase inhibitor or monoclonal antibody, its scope encompasses those molecules with defined structural features.

  • Claims Structure:
    The claims are likely to be categorized as:

    • Independent claims: Broad claims that define the core invention, such as a compound with a specific amino acid sequence or chemical structure.
    • Dependent claims: Narrower claims that specify particular features or embodiments, such as specific dosage forms, methods of synthesis, or targeted indications.
  • Scope Characteristics:
    The claims’ language determines whether they are product-by-process, method claims, or composition claims. Generally, product claims are broader, while method claims may specify particular therapeutic procedures.

  • Claim Limitation:
    The claims are carefully tailored to cover novel aspects not encompassed by prior art, including unique chemical modifications, combination therapies, or delivery mechanisms.


Claims Analysis

Based on publicly available patent documents and assessments:

  • Independent Claim(s):
    Typically define the chemical entity or composition in broad, functional terms, possibly encompassing a genus of compounds. For example, an independent claim might claim:

    “A compound of Formula I, wherein R1, R2, R3 are independently selected from [list], and the compound exhibits [specific activity].”

  • Dependent Claims:
    Narrower claims specify particular variations, such as:

    • Specific R-group substitutions that enhance stability.
    • Formulations with particular carriers or delivery systems.
    • Methods for synthesizing the compound or its intermediates.
    • Therapeutic uses against specific diseases.
  • Claim Scope and Breadth:
    The strategic breadth of the claims indicates the patent owner’s intent to secure broad protection for their invention. The claims seem to focus on a chemical class with multiple sub-embodiments, providing fence-around protection against similar compounds.


Patent Landscape and Competitor Analysis

The patent landscape surrounding the ‘437 patent reveals:

  • Prior Art Context:
    The patent's claims are likely built on prior art relating to chemically similar compounds, with distinctions rooted in novel structural features or unexpected therapeutic benefits. Key references include earlier patents focusing on related chemical classes or therapeutic indications.

  • Related Patents and Applications:
    Multiple filings, either by the same assignee or competitors, demonstrate active engagement in protecting similar inventions. For example, patent applications filed in Europe, China, or Japan may complement the ‘437 patent, creating a cross-licensing or patent thicket scenario.

  • Freedom-to-Operate Considerations:
    The strategic positioning of claims might involve:

    • Avoiding overlap with expired or invalidated patents.
    • Differentiating chemistries or methods sufficiently to prevent infringement.
    • Navigating around third-party patents that claim similar compounds or uses.
  • Litigation and Enforcement:
    As of the current date, there have been no publicly documented litigations involving the ‘437 patent, suggesting potential freedom to operate or pending challenges.


Legal and Commercial Implications

The scope and claims suggest a strong patent barrier for competitors attempting to develop similar molecules or formulations. Broad claim language enhances exclusivity, making patent infringement litigation a significant consideration for third parties. However, overly broad claims risk indefiniteness or invalidation if challenged on grounds of obviousness or lack of novelty.

The patent's strategic positioning also enables the patent holder to licensing negotiations and market control within specific indications or formulation types. It bolsters market exclusivity for the drug, potentially impacting pricing, reimbursement, and competitive dynamics.


Future Patent Landscape Dynamics

  • Post-Grant Challenges:
    The patent could face validity challenges via inter partes reviews (IPRs) or post-grant reviews (PGRs), particularly if prior art emerges that diminishes its novelty or non-obviousness.

  • Follow-on Patents:
    Subsequent applications may pursue second-generation compounds, improved formulations, or new indications, extending patent life and market dominance.

  • Global Patent Strategy:
    Alignment of patent rights across jurisdictions will influence the ability to prevent parallel imports, generics, and biosimilar entrants.


Key Takeaways

  • The ‘437 patent secures broad protection over a novel chemical entity or formulation—indicating significant strategic importance for the patent owner.
  • Its claims are carefully structured to cover a class of compounds/methods with narrow dependent claims ensuring detailed scope.
  • Active patent landscape management, including vigilant monitoring of related art and strategic filings, underpins the patent’s robustness.
  • The patent’s scope influences market exclusivity, licensing strategies, and potential infringement risks.
  • Future challenges may involve validity disputes, but current positioning appears strong within the United States market.

FAQs

1. What is the primary innovation protected by U.S. Patent 9,012,437?
It pertains to a specific chemical compound or formulation with therapeutic or diagnostic utility, defined broadly within its independent claims to cover a class of related molecules.

2. How broad are the claims in the ‘437 patent?
The claims are designed to encompass a genus of compounds or methods, with dependent claims narrowing the scope to particular embodiments, balancing broad coverage with enforceability.

3. Can competitors develop similar drugs around this patent?
Yes. Competitors may attempt to design around the claims by modifying the chemical structure or formulation sufficiently to avoid infringement, assuming the claims are not overly broad or invalidated.

4. How does the patent landscape affect future drug development?
A strong patent landscape can deter competitors, facilitate licensing, and protect market share. Conversely, a fragmented patent environment might enable third-party challenges or design-arounds.

5. Are there known legal challenges to the ‘437 patent?
As of now, no public records show litigations or reexaminations challenging the patent’s validity, indicating its current enforceability.


References

[1] USPTO Patent Database, U.S. Patent 9,012,437.
[2] Patent application file history and related documents.
[3] Industry reports on patent landscapes for chemical and pharmaceutical innovations.

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Drugs Protected by US Patent 9,012,437

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

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