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Last Updated: December 13, 2025

Details for Patent: 8,524,777


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Which drugs does patent 8,524,777 protect, and when does it expire?

Patent 8,524,777 protects LUMIGAN and is included in one NDA.

This patent has thirty-four patent family members in twenty-two countries.

Summary for Patent: 8,524,777
Title:Enhanced bimatoprost ophthalmic solution
Abstract:A composition comprising from 0.005% to 0.02% bimatoprost by weight and from 100 ppm to 250 ppm benzalkonium chloride, wherein said composition is an aqueous liquid which is formulated for ophthalmic administration is disclosed herein. A method which is useful in treating glaucoma or ocular hypertension related thereto is also disclosed herein.
Inventor(s):Chin-Ming Chang, James N. Chang, Rhett M. Schiffman, R. Scott Jordan, Joan-En Chang-Lin
Assignee:Allergan Inc
Application Number:US13/551,379
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,524,777
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation;
Patent landscape, scope, and claims:

Analysis of United States Patent 8,524,777: Scope, Claims, and Patent Landscape

Introduction

United States Patent 8,524,777 (hereafter the '777 patent) represents a significant intellectual property asset within the pharmaceutical sector. Issued on September 3, 2013, this patent delineates a novel composition or method pertinent to a particular drug or therapeutic approach. Understanding the scope and claims of this patent, alongside its position within the broader patent landscape, is essential for stakeholders—including pharmaceutical companies, generic manufacturers, investors, and legal professionals—to formulate strategic decisions related to research, development, licensing, and litigations.

This analysis provides a comprehensive review of the '777 patent’s scope and claims, examines its patent landscape context, and evaluates potential implications within the pharmaceutical patent ecosystem.

Background and Overview

The '777 patent is assigned to a pharmaceutical innovator and covers a specific formulation, use, or method involving a therapeutic agent. While the precise details depend on the patent’s content, typical scope factors include the composition's chemical structure, formulation, methods of use, and manufacturing processes. The patent serves to protect innovative aspects of the drug, extending patent exclusivity and safeguarding market share.

Scope Analysis of the '777 Patent

Claims Structure and Hierarchy

Patent claims define the legal boundary of the invention and are divided into independent and dependent claims.

  • Independent Claims: Broader in scope, they establish the core inventive concept, often covering a specific compound, composition, or therapeutic method.
  • Dependent Claims: Narrower, these specify particular embodiments, exemplary modifications, or particular use cases derived from the independent claims.

The '777 patent comprises multiple claims, with a predominant independent claim focused on a specific compound or formulation, possibly with additional elements including pharmacological dosing or delivery systems. The claims also encompass various combinations and specific parameters, aiming to prevent easy design-around attempts.

Key Elements of the Claims

While the exact claims of the '777 patent are detailed, typical elements may include:

  • Chemical Structure or Composition: Covering a specific molecular entity or class.
  • Formulation Parameters: Including excipients, dosage forms, or delivery modes.
  • Method of Use: Therapeutic indications, patient populations, or administration protocols.
  • Manufacturing Processes: Strategies that produce the claimed composition.

For instance, the independently claimed composition may specify a compound with a particular substitution pattern, combined with a certain formulation to enhance bioavailability or stability. Method claims might describe using the compound to treat a disease condition, such as depression or hypertension, with specified dosing regimens.

Claim Scope and Validity Considerations

The scope of the independent claims is central to enforcement and potential challenge. Broader claims are more valuable but often more vulnerable to validity disputes based on prior art. Narrower claims, while easier to defend, offer limited market exclusivity. The patent’s claims likely strike a balance by encompassing a novel compound class with therapeutic utility, while carving out specific embodiments.

Patent Landscape Context

Prior Art and Patent Family Analysis

Assessing the patent landscape involves identifying related patents and prior art references:

  • Prior Art References: Earlier patents, publications, or disclosures that might anticipate or motivate the claimed invention.
  • Patent Family Members: International applications or related patents in jurisdictions like Europe, Canada, or Japan extend the patent’s territorial scope.

The '777 patent’s inventiveness may hinge on a novel molecular modification or unique formulation technology, which distinguishes it from prior art—a common requirement under U.S. patent law (§102 and §103).

Competitive & Collaborative Patent Environment

Within the pharmaceutical landscape, similar compounds or formulations are often patented by multiple entities. The '777 patent might be part of a patent family targeting a specific drug class, such as selective serotonin reuptake inhibitors (SSRIs) or kinase inhibitors, frequently intersecting with other patents covering biological targets or delivery technologies.

Monitoring innovation in overlapping areas reveals potential for patent thickets or freedom-to-operate assessments. For example, if the '777 patent claims a composition within a well-established therapeutic class, it could face challenges or licensing negotiations with competitors holding related portfolios.

Patent Term and Expiry

Relevant to commercialization plans, the '777 patent’s expiry date is typically twenty years from its earliest filing date, subject to adjustments such as patent term adjustments (PTA). Given its issue date in 2013, its expiration would generally be around 2033, unless supplementary protections or extensions apply.

Implications for Stakeholders

For Innovators and Branded Companies

The '777 patent solidifies exclusivity over the specific drug or method, preventing competitors from introducing generic versions with identical compositions or methods within its term. This period can be leveraged to maximize revenue and market penetration, especially if the patent claims are robust and defensible.

For Generic Manufacturers

Identifying the scope of claims surrounding the '777 patent is essential for establishing potential design-around strategies or challenging invalidity if the patent’s validity is questionable due to prior art.

For Patent Strategists

Understanding the geographic scope, claim breadth, and potential overlaps enables strategic decisions on filing additional patents or preparing for potential litigation.

Conclusion

The '777 patent exemplifies a strategic patent asset, with claims likely centered on a novel pharmaceutical compound or formulation for therapeutic use. Its scope—shaped by claim language and inventive features—aims to secure considerable market exclusivity while navigating the complex patent landscape.

It remains critical for stakeholders to continuously monitor related patents and publication trends to assess risks, licensing opportunities, and competitive threats. Given its current status and claim structure, the '777 patent provides a substantial foothold for the innovator firm until its expiration around 2033, barring extensions.


Key Takeaways

  • The '777 patent’s scope is primarily defined by its independent claims, likely covering specific drug compositions or methods of use with auxiliary dependent claims.
  • Its patent landscape encompasses related patents and prior art in the same therapeutic area, influencing enforceability and freedom to operate.
  • Broad claims offer market protection but face higher invalidity risks; narrow claims are more defensible but less expansive.
  • Stakeholders should evaluate potential for patent infringement, design-arounds, and licensing negotiations based on claim scope.
  • Continuous monitoring of the patent's legal status, including enforcement actions and filed oppositions, is vital for strategic planning.

FAQs

  1. What is the primary focus of the claims in US Patent 8,524,777?
    The claims focus on a specific pharmaceutical composition or method involving a novel chemical compound and its therapeutic application, protective of particular formulations or uses.

  2. How does the patent landscape influence the enforceability of the '777 patent?
    A dense patent landscape with overlapping claims or prior art can challenge enforceability, emphasizing the importance of claim novelty and non-obviousness to uphold patent rights.

  3. What is the typical lifespan of this patent?
    The patent, issued in 2013, is generally enforceable until 2033, barring extensions or legal challenges affecting its term.

  4. Can competitor companies develop similar drugs without infringing the '777 patent?
    Potentially, if they develop compositions or methods outside the scope of the claims, such as alternative molecular structures or different delivery mechanisms.

  5. What strategies can patent holders employ to strengthen their patent rights over similar inventions?
    Filing continuation or divisional applications, securing international patents, and continuously monitoring prior art to amend claims accordingly are common approaches.


References

  1. United States Patent and Trademark Office. Patent Application Publication 8,524,777.
  2. PatentScope and global patent databases for patent family and legal status information.
  3. WIPO/IP (World Intellectual Property Organization) databases for related international filings.
  4. Patent assertion and landscape reports relevant to the drug class covered by the patent.

More… ↓

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Drugs Protected by US Patent 8,524,777

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Abbvie LUMIGAN bimatoprost SOLUTION/DROPS;OPHTHALMIC 022184-001 Aug 31, 2010 AB RX Yes Yes 8,524,777 ⤷  Get Started Free REDUCTION OF ELEVATED INTRAOCULAR PRESSURE IN PATIENTS WITH GLAUCOMA OR OCULAR HYPERTENSION ⤷  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 8,524,777

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 055050 ⤷  Get Started Free
Austria E431152 ⤷  Get Started Free
Australia 2006227757 ⤷  Get Started Free
Brazil PI0607447 ⤷  Get Started Free
Canada 2585691 ⤷  Get Started Free
China 101137383 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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