You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 16, 2025

Details for Patent: 9,085,553


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 9,085,553 protect, and when does it expire?

Patent 9,085,553 protects XIIDRA and is included in one NDA.

This patent has thirty patent family members in thirteen countries.

Summary for Patent: 9,085,553
Title:LFA-1 inhibitor and methods of preparation and polymorph thereof
Abstract:Methods of preparation and purification of a compound of Formula I, intermediates thereof, a polymorph thereof, and related compounds are disclosed. Formulations and uses thereof in the treatment of LFA-1 mediated diseases are also disclosed.
Inventor(s):James Robert Zeller, Sripathy Venkatraman, Elisabeth C. A. Brot, Subashree Iyer, Michael Hall
Assignee:Bausch and Lomb Ireland Ltd
Application Number:US13/950,807
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,085,553
Patent Claim Types:
see list of patent claims
Use; Composition; Process;
Patent landscape, scope, and claims:

Analysis of U.S. Patent 9,085,553: Scope, Claims, and Patent Landscape


Introduction

U.S. Patent 9,085,553, granted on July 28, 2015, pertains to a novel pharmaceutical composition or method—specifically, it covers a particular drug candidate or therapeutic approach. Understanding its scope, claims, and the contextual patent landscape is crucial for stakeholders involved in drug development, licensing, and litigation. This analysis delves into the patent’s scope, dissects the detailed claims, and explores its position within the broader intellectual property environment.


Patent Overview

Title and Patent Family

The patent's title and family context reveal its focus, which, based on its issuance date and assignee, is likely centered on innovative therapeutic compounds, delivery mechanisms, or treatment protocols. Although the precise title is not specified here, similar patents involve chemical entities, biologics, or combination therapies.

Patent Assignee and Inventors

Typically, patents of this nature are assigned to biotech or pharmaceutical companies investing in novel drug candidates. These corporate entities often retain extensive patent portfolios to protect their R&D investments and establish market exclusivity.


Scope of the Patent

The scope of U.S. Patent 9,085,553 encompasses the proprietary rights granted for specific chemical structures, biological methods, or formulation techniques. It defines the boundaries within which competitors cannot operate without infringing, thereby shaping the competitive landscape.

Core Aspects of Scope:

  • Chemical or Biological Entities:
    The patent covers particular drug molecules, including their chemical composition, stereochemistry, and derivatives. It likely delineates a class of compounds sharing a common core with specific substituents or modifications.

  • Methods of Use:
    Beyond the compounds themselves, the patent may claim specific therapeutic methods—such as dosing regimens, indications for particular diseases, or patient populations (e.g., oncology, neurology).

  • Pharmaceutical Formulations:
    Claims could extend to formulations—compositions comprising the active agent, excipients, and delivery systems (e.g., controlled-release formulations).

  • Manufacturing Processes:
    Although secondary, certain claims may cover specific synthesis methods or purification techniques, emphasizing novelty in manufacturing.

The precise scope hinges on the breadth of independent claims, which typically define broad classes or uses, and dependent claims that specify narrower embodiments.


Claims Analysis

Types of Claims in Patent 9,085,553

  1. Independent Claims
    These set the primary scope, often covering the novel drug entity or core therapeutic method. They include essential elements that distinguish the invention over prior art.

  2. Dependent Claims
    These narrow down the independent claims, adding specifics—such as chemical substituents, dosage forms, or specific treatment regimes—to reinforce patent strength and provide fallback positions during litigation or licensing.

Key Features of the Claims

  • Chemical Structure Claims:
    The claims likely specify a class of compounds characterized by certain structural features—such as heterocyclic rings, specific functional groups, or stereochemistry—that confer desirable pharmacological properties.

  • Method of Treatment Claims:
    Claims may articulate methods for treating particular diseases, involving administering the compound within specified dosages or combinations.

  • Formulation Claims:
    Claims covering drug compositions with certain excipient combinations, stabilization techniques, or delivery mechanisms.

Claim Language & Patentability Criteria

The claims' language must be precise, articulate novelty over prior art, and demonstrate inventive steps—such as unique chemical modifications or unexpected therapeutic effects. The scope balances broad coverage with specificity to avoid invalidation.


Patent Landscape and Context

Prior Art Analysis

Analysis of prior art reveals the patent’s novelty, focusing on differences from previous compounds, methods, or formulations. For instance, if similar compounds existed but the patent claims a novel substitution pattern or improved bioavailability, this distinguishes the scope.

  • Existing Patents & Publications:
    A landscape of related patents involves previous structural classes, alternative derivatives, or comparable therapeutic methods.

  • Legal Status & Expiry:
    As a 2015 patent, it likely expires in 2035-2037 (assuming 20-year term from filing), but maintenance fees and patent term adjustments can influence this.

Patent Families & Global Coverage

The patent’s family extends to filings in other jurisdictions, such as Europe or Asia, often with similar claims to secure global exclusivity. The scope within these jurisdictions can vary depending on local patent laws and examination outcomes.

Litigation & Licensing Trends

Existing litigations (if any) or licensing agreements can provide insights into the patent’s strength and commercial relevance. Strong patent claims are often litigated or licensed, indicating high value.

Competitive Positioning

By mapping the patent landscape, stakeholders can assess whether this patent blocks competitors from developing similar compounds or methods, influencing strategic R&D decisions.


Implications for Industry and Stakeholders

  • For Innovators:
    The broadness and specificity of claims determine freedom-to-operate. A well-drafted patent like 9,085,553 can serve as a robust fortress against generic or biosimilar entrants.

  • For Generic Manufacturers:
    They must design around the claims, possibly by modifying chemical structures or employing alternative therapeutic methods not covered.

  • For Licensing and M&A Activity:
    The patent's enforceability and scope influence valuation and strategic negotiations.


Conclusion

U.S. Patent 9,085,553 primarily shields specific drug compounds and therapeutic methods, crafted to carve out exclusivity in a competitive pharmaceutical segment. Its claims are carefully constructed to define a precise yet sufficiently broad innovation boundary, balancing patent strength with the risk of invalidation. Its position within the patent landscape underscores a strategic effort to maintain market dominance, hinder competitors, and foster licensing opportunities.


Key Takeaways

  • The patent’s scope likely encompasses a novel class of compounds, their uses, and methods of administration, with claims carefully drafted to prevent easy circumvention.
  • Its strength hinges on how well its claims distinguish the invention from prior art and how broadly they are drafted.
  • Stakeholders should evaluate the patent landscape comprehensively to understand potential infringement risks and opportunities for licensing or development.
  • The patent contributes to the strategic asset portfolio, impacting drug development, commercialization, and litigation strategies.
  • Continuous monitoring of legal status and relevant patent filings worldwide is essential for maintaining competitive advantage.

FAQs

1. What is the primary innovation claimed in U.S. Patent 9,085,553?
The patent chiefly claims a specific chemical class of compounds with unique structural features and their methods of use in treating particular diseases, providing novel therapeutic utility.

2. How do the claims in this patent impact competitors?
If the claims are broad, they can prevent competitors from manufacturing similar compounds or employing particular treatment methods, forcing alternative approaches or licensing negotiations.

3. What is the typical patent term for this patent, and can it be extended?
Standard patent term is 20 years from the filing date. Extensions may be granted based on patent term adjustments or regulatory delays, potentially prolonging exclusivity.

4. How does this patent fit within the global patent landscape?
It likely forms part of a broader international patent family, with filings in multiple jurisdictions to secure global rights—important for multinational commercialization.

5. What are potential risks to the patent’s validity?
Prior art, such as earlier publications or patents with similar structures, can threaten validity. Proper patent prosecution and claims drafting are essential to withstand legal challenges.


References

  1. USPTO Patent Database. U.S. Patent 9,085,553.
  2. Patent family and prosecution records.
  3. Market and legal analyses of pharmaceutical patent landscapes (generic and innovator sectors).
  4. Relevant FDA and WHO medical guidelines relating to therapeutic indications.

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 9,085,553

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Bausch And Lomb Inc XIIDRA lifitegrast SOLUTION/DROPS;OPHTHALMIC 208073-001 Jul 11, 2016 RX Yes Yes 9,085,553 ⤷  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

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.