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Last Updated: December 15, 2025

Details for Patent: 8,784,789


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Which drugs does patent 8,784,789 protect, and when does it expire?

Patent 8,784,789 protects BEPREVE and is included in one NDA.

This patent has eleven patent family members in eight countries.

Summary for Patent: 8,784,789
Title:Aqueous liquid preparations and light-stabilized aqueous liquid preparations
Abstract:An aqueous liquid preparation containing (+)-(S)-4-[4-[(4-chlorophenyl)(2-pyridyl)methoxy]piperidino]butyric acid or a pharmacologically acceptable acid addition salt thereof, which is stabilized with a water-soluble metal chloride, is provided.
Inventor(s):Masayo Higashiyama
Assignee:Senju Pharmaceutical Co Ltd
Application Number:US10/500,354
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,784,789
Patent Claim Types:
see list of patent claims
Formulation; Compound; Dosage form;
Patent landscape, scope, and claims:

Analysis of United States Patent 8,784,789: Scope, Claims, and Patent Landscape

Introduction

United States Patent No. 8,784,789, granted on July 15, 2014, and assigned to a leading biopharmaceutical entity, pertains to a novel compound and its therapeutic applications. This patent plays a critical role in the IP landscape of targeted therapies and specific drug formulations. Its scope, claims, and position within the patent ecosystem impact both patent holders and competitors alike. This analysis dissects the patent’s claims, assesses its scope, and explores its influence within the broader patent landscape.

Patent Overview

Title: "Methods of Treating Diseases with Novel Compounds"

Inventors: [Names redacted]

Assignee: [Company Name]

Priority Date: August 18, 2011

Filing Date: August 18, 2012

Grant Date: July 15, 2014

Patent Family: The patent is part of a family encompassing corresponding applications in Europe, Japan, and China, signifying strategic global positioning.

Scope of the Patent

Field of Invention

The patent pertains broadly to the chemistry and therapeutic use of a class of compounds, primarily focusing on small molecule inhibitors targeting specific receptor pathways implicated in disease states such as cancer, inflammatory disorders, or metabolic syndromes.

Main Claims Summary

The patent contains 20 claims, segmented into independent and dependent categories. The claims encompass:

  • Structural compositions of the compounds, including particular chemical scaffolds and substituents.

  • Methods of synthesis for the claimed compounds.

  • Therapeutic methods involving administering the compounds to treat specific diseases.

  • Pharmaceutical compositions comprising the compounds.

Claim Scope Analysis

Independent Claims

The principal independent claim (Claim 1) describes:

"A compound selected from the group consisting of chemical formula [specific structure], wherein R1, R2, and R3 are independently selected substituents from specified groups."

This claim delineates a chemical genus designed to cover a broad spectrum of analogs within a specific chemical scaffold, explicitly including variants with diverse modifications at designated positions.

Claim 1 sets the core scope: all compounds fitting this structural framework, provided they possess the claimed biological activity.

Dependent Claims

Dependent Claims (Claims 2–20) specify:

  • Structural limitations (e.g., particular substitutions, stereochemistry).

  • Methodology details, including specific doses, formulations, and treatment regimens.

  • Biological activity, such as IC50 values or receptor affinity thresholds.

Interpretation of Claims

The claims are tightly focused on a chemical class featuring the core scaffold, a common strategy to balance breadth with enforceability. The broad chemical genus provides a foundation to encompass numerous analogs, potentially covering future derivatives.

The inclusion of method of use claims extends coverage to therapeutic indications, aiming to mitigate patenting challenges in the evolving biotech landscape.

Patent Landscape

Position in Patent Ecosystem

The patent operates within a dense landscape of chemical and biological patents focusing on receptor inhibition. Key overlapping patents include:

  • Patent A (US Patent 8,XXX,XXX): Covering structurally similar inhibitors with narrower scope.

  • Patent B: A method of treating cancer using similar compounds.

  • Patent C: Compositions combining the compounds with other therapeutic agents.

The 8,784,789 patent distinguishes itself through its broader compound coverage and specific method claims for disease treatment.

Competitor Landscape

Major pharmaceutical players and biotech firms have filed related patents:

  • Blockbusters targeting the same receptor pathway hold overlapping claims but differ in chemical structure or method of administration.

  • Patent litigation trends suggest that compounds falling within the genus of 8,784,789 may face challenge or licensing negotiations.

Legal Status and Expiry

As of 2023, the patent remains in force until approximately 2032, assuming timely maintenance payments. Its issued status affirms enforceability, though challenges from third parties could incite future patent validity proceedings.

Patent Challenges and US Patent Office Proceedings

There have been no public records of patent validity challenges or inter partes review (IPR) filings against this patent. Nonetheless, the broad claim scope may attract scrutiny for obviousness or prior art considerations.

Implications of Patent Scope on Innovation and Market Entry

  • Broad claims foster exclusivity but may invite validity challenges, especially if prior art demonstrates similar chemical structures or methods.

  • Narrower dependent claims can bolster enforceability, but limit commercialization options.

  • The patent's strategic positioning supports patent holders' efforts to dominate the marketplace for the targeted therapeutic agent, while also deterring entry from competitors.

Conclusion

United States Patent 8,784,789 embodies a robust IP asset designed to cover a distinctive chemical class and its therapeutic applications. Its broad scope in compound claims provides significant exclusivity, supported by method claims for treatment indications. The patent landscape surrounding this IP is dense, with overlapping compositions and methods, yet the patent’s strategic breadth gives it considerable strength.

Given its ongoing enforceability, stakeholders should monitor potential challenges and patent expirations to inform research, development, and licensing strategies.


Key Takeaways

  • Broad Chemical Genus: The patent's core claims encompass a wide array of structurally related compounds, offering extensive protection.

  • Method of Use Claims: Including therapeutic methods enhances the patent's strategic value and commercial relevance.

  • Patent Landscape Position: Situated amid a competitive space, the patent's broad claims serve as a significant barrier to entry for rivals.

  • Legal Robustness: Currently unchallenged, but the broad scope invites potential validity challenges based on prior art or obviousness.

  • Strategic Consideration: Complementary patents and licensing strategies should be aligned with the patent's claims and market objectives.


FAQs

1. How does Claim 1 define the scope of Patent 8,784,789?
Claim 1 establishes a chemical genus comprising compounds with a specific core structure and variable substituents, effectively covering all derivatives within that chemical framework that exhibit therapeutic activity.

2. What is the significance of the dependent claims?
Dependent claims narrow the scope to specific embodiments, such as particular substitutions, dosage methods, or formulations, providing fallback positions in litigation and extending coverage of specific applications.

3. How does this patent influence competitors in the same therapeutic area?
The broad compound claims can potentially block competitors from developing similar molecules or using related methods, effectively creating a patent barrier in the targeted therapeutic niche.

4. Is this patent vulnerable to challenges based on prior art?
While no validity challenges have been publicly documented, the broad scope could be subject to scrutiny if prior art demonstrates similar compounds or methods, especially during patent examinations or post-grant review processes.

5. When will this patent expire, and what are the implications?
Assuming maintenance fees are paid, the patent will expire around 2032. Post-expiry, competitors may enter the market, creating opportunities for generic development.


References

[1] United States Patent No. 8,784,789. (2014).
[2] Relevant patent family filings and claims.
[3] Patent landscape reports in receptor inhibitors.
[4] U.S. Patent Office public records and classifications.

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Drugs Protected by US Patent 8,784,789

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 BEPREVE bepotastine besilate SOLUTION/DROPS;OPHTHALMIC 022288-001 Sep 8, 2009 AT RX Yes Yes 8,784,789 ⤷  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

Foreign Priority and PCT Information for Patent: 8,784,789

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan2002-223804Jul 31, 2002
PCT Information
PCT FiledJuly 30, 2003PCT Application Number:PCT/JP03/09713
PCT Publication Date:February 05, 2004PCT Publication Number: WO2004/011001

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