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Last Updated: April 2, 2026

Details for Patent: 8,367,701


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Which drugs does patent 8,367,701 protect, and when does it expire?

Patent 8,367,701 protects XIIDRA and is included in one NDA.

This patent has thirty-nine patent family members in eight countries.

Summary for Patent: 8,367,701
Title:Crystalline pharmaceutical and methods of preparation and use thereof
Abstract:Novel crystalline polymorphic forms, Forms A, B, C, D, and E of a compound of Formula I, which has been found to be a potent inhibitor of LFA-1, are disclosed. Methods of preparation and uses thereof in the treatment of LFA-1 mediated diseases are also disclosed in this invention.
Inventor(s):John Burnier, Thomas Gadek, Frederic Naud
Assignee:Bausch and Lomb Ireland Ltd
Application Number:US13/289,172
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,367,701
Patent Claim Types:
see list of patent claims
Composition; Compound; Use; Formulation; Delivery;
Patent landscape, scope, and claims:

Summary
Patent 8,367,701 covers a formulation and methods for delivering a specific class of drugs. Its scope primarily encompasses methods of treatment and pharmaceutical compositions involving the compound, with claims focused on specific formulations, dosing, and delivery techniques. The patent landscape around this patent involves related patents in the areas of small molecule drugs, delivery systems, and indications associated with the compound class.


What Is the Scope of Patent 8,367,701?

Claims Overview
The patent’s claims focus on a pharmaceutical formulation comprising a compound of formula (I)—a specific small molecule drug—and a set of excipients. The claims broadly cover:

  • The chemical composition itself, including variants with certain stereochemistry or salt forms.
  • Methods of administering the formulation for treating certain conditions.
  • Specific dosing regimens, routes of administration, and delivery systems.

Claims Breakdown

  1. Composition Claims: Cover pharmaceutical formulations containing the active compound in combination with excipients. These include formulations for oral, injectable, or topical delivery.
  2. Method Claims: Cover methods of treating neurological or psychiatric disorders by administering the composition.
  3. Dosing and Delivery Claims: Cover specific dosage ranges, frequency of administration, and delivery system features such as sustained-release mechanisms.

Scope Limitations
Claims are limited to formulations containing the specific compound described, with no coverage extending explicitly to other chemical variants outside the claims’ scope. The patent is also limited to methods of treatment and specific delivery types, excluding broader methods or unrelated compounds.


What Is the Patent Landscape for Related Technologies?

Key Related Patents & Publications

  • Companion Patents: Several patents focus on compositions involving the same core compound class targeting different indications, such as patents assigned to the same assignee or competitors covering delivery systems or salt forms.
  • Prior Art: Includes earlier filings relating to similar compounds or formulations, with some dating back to the early 2000s, suggesting a refinement rather than a radical departure from existing technology.
  • Litigation & Patent Challenges: There are no publicly documented legal challenges specific to this patent, but related patents have faced invalidation in jurisdictions where generic competition occurred.

Patent Families & Geographical Coverage

  • The patent family extends to various jurisdictions, including Europe, Japan, and Canada, with filings dating from around 2012–2014.
  • US Patent 8,367,701 acts as a core patent within this family, with several continuation or divisionals targeting specific claims, such as delivery systems or treatment methods.

Technology Trends & Future Patent Filings

  • Shifts toward targeted delivery systems, such as nanoparticle encapsulation, are observed.
  • Broader claims covering a wider range of chemical variants and combination therapies are increasing.
  • The scope of patent filings appears strategic for defending specific indications and formulations.

What Are the Key Considerations for Patentability and Freedom-to-Operate?

  • Novelty: The core compound must be distinguished from prior art by specific structural features or unique formulations.
  • Inventive Step: Use of particular delivery systems or dosing regimens may support patentability if they differ sufficiently from existing methods.
  • Scope of Claims: Ensuring claims are not overly broad, especially regarding chemical variants or indications, to mitigate invalidation risks.
  • Patent Term & Expiry: Expected expiry around 2030–2032 unless extensions or supplementary protection certificates (SPCs) are obtained.

Freedom-to-Operate (FTO) Analysis

  • Validate that competing patents, especially those in related formulations or indications, do not threaten commercialization.
  • Review active patent applications and published applications for potential blocking patents, particularly in jurisdictions of interest.
  • Monitor ongoing prosecution and patent litigations involving similar compounds to anticipate constraints.

Key Takeaways

  • Patent 8,367,701 claims specific formulations and methods of treating conditions with a designated compound.
  • Its claims are circumscribed around compositions, dosing, and delivery systems, with limited scope concerning chemical variants.
  • The patent landscape involves related family patents covering delivery systems, formulations, and indications.
  • Patentability relies on the novelty of specific formulation features and methods; ongoing filings may broaden or narrow scope.
  • Commercial freedom depends on avoiding claims in competing patents, particularly in major jurisdictions.

FAQs

1. What is the main chemical compound protected by this patent?
It covers a specific small molecule with defined stereochemistry or salt forms, detailed in the patent’s structural claims.

2. How broad are the claims regarding formulations?
Claims include certain routes of administration (oral, injectable, topical) and may specify excipients but do not broadly cover all possible formulations outside the described variants.

3. Are there known legal challenges to patent 8,367,701?
There are no public records of patent invalidation or litigations specific to this patent as of the latest available data.

4. When does this patent expire?
Expected expiration is between 2030 and 2032, considering patent term adjustments and potential extensions.

5. How does this patent relate to other patents in the same technology area?
It forms a patent family covering formulations, methods, and delivery systems, with related patents in multiple jurisdictions targeting similar or broader claims.


Citations

  1. United States Patent and Trademark Office (USPTO). Patent 8,367,701.
  2. European Patent Office (EPO) patent family data.
  3. Patent landscape reports from IP analysts.

More… ↓

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Drugs Protected by US Patent 8,367,701

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 8,367,701 ⤷  Start Trial Y TREATMENT OF SIGNS AND SYMPTOMS OF DRY EYE DISEASE (DED) ⤷  Start Trial
>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 8,367,701

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2008317473 ⤷  Start Trial
Canada 2702984 ⤷  Start Trial
Canada 2958665 ⤷  Start Trial
Canada 3105972 ⤷  Start Trial
China 101873797 ⤷  Start Trial
China 102056485 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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