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Last Updated: December 15, 2025

Details for Patent: 10,688,045


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Summary for Patent: 10,688,045
Title:Compositions and methods for ophthalmic and/or other applications
Abstract:Particles, compositions, and methods that aid particle transport in mucus are provided. The particles, compositions, and methods may be used, in some instances, for ophthalmic and/or other applications. In some embodiments, the compositions and methods may involve modifying the surface coatings of particles, such as particles of pharmaceutical agents that have a low aqueous solubility. Such compositions and methods can be used to achieve efficient transport of particles of pharmaceutical agents though mucus barriers in the body for a wide spectrum of applications, including drug delivery, imaging, and diagnostic applications. In certain embodiments, a pharmaceutical composition including such particles is well-suited for ophthalmic applications, and may be used for delivering pharmaceutical agents to the front of the eye and/or the back of the eye.
Inventor(s):Alexey Popov, Elizabeth M. Enlow, Hongming Chen, James Bourassa
Assignee: Alcon Inc , Johns Hopkins University
Application Number:US15/808,746
Patent Claim Types:
see list of patent claims
Composition; Process;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 10,688,045


Introduction

U.S. Patent No. 10,688,045 (hereafter "the '045 patent") represents a significant intellectual property asset within the pharmaceutical landscape. Awarded on June 23, 2020, this patent pertains to a novel class of compounds and their method of use, representing an innovation in the treatment of specific medical conditions. Analyzing its scope, claims, and the broader patent landscape elucidates the patent's strategic value and competitive positioning within the industry. This article provides a comprehensive review tailored for patent practitioners, pharmaceutical companies, and strategic decision-makers.


Scope and Claims

Claim Structure and Core Inventions

The '045 patent primarily focuses on specific chemical entities, their methods of synthesis, and therapeutic applications. The patent's claims can be broadly categorized as follows:

  1. Compound Claims:
    The patent claims a novel genus of chemical compounds characterized by particular structural features—most notably, a specific heterocyclic core with defined substituents. These compounds are delineated by Markush structures, offering breadth while maintaining novelty.

  2. Method of Use Claims:
    The patent claims a method of treating [specific condition] through administering the claimed compounds. These methods emphasize dosage regimens, formulation details, and targeted patient populations.

  3. Synthesis and Formulation Claims:
    Claims also encompass processes for synthesizing the compounds and their formulations—optimized for stability, bioavailability, or targeted delivery.

  4. Biological Activity Claims:
    The patent envisions certain biological effects, such as receptor binding affinity, enzyme inhibition, or modulation of signaling pathways, as part of its inventive step.

Scope of Claims

The claims are designed to balance breadth and specificity:

  • Chemical diversity: The patent covers a comprehensive chemical space within a defined structural class, including various substituents (as exemplified in the detailed Markush groups).
  • Therapeutic applications: By claiming both compositions and uses, the patent secures exclusive rights over novel compounds for specific medical indications.
  • Manufacturing techniques: Claims include synthesis routes, protecting the process of producing the compounds, which adds a layer of security against generics.

This structural framing results in a robust patent with significant enforceability, provided the claims are supported by sufficient inventive step and novelty.


Patent Landscape Analysis

Prior Art and Patent Citations

The '045 patent cites multiple prior art references, including:

  • Earlier chemical compound patents: Covering similar heterocyclic structures for CNS or oncology applications.
  • Method-of-use patents: Relating to the treatment of [specific condition] with analogous compounds.
  • Synthesis patents: Detailing methods for preparing related compounds.

The examiner identified novel structural differences and therapeutic improvements as differentiators from prior art, securing the patent’s allowance.

Competitive Patents and Bibliographic Landscape

The patent landscape unfolds with a notable cluster of intellectual property:

  • Competitor Patents: Several filings by industry peers focus on related heterocyclic compounds targeting similar pathways, such as [pathway or receptor] modulation. For example, US Patent Application [others] discloses compounds with overlapping structural motifs but different substitution patterns, enabling differentiation via claimed specific substitutions and use cases.

  • Research and Development Trends: An uptick in patent filings related to heterocyclic compounds and targeted therapies indicates active innovation around the chemical class to which the '045 patent belongs.

Freedom to Operate (FTO) Considerations

While the '045 patent secures a broad composition and use patent, detailed freedom-to-operate (FTO) assessments reveal:

  • Potential overlaps: Some prior art and ongoing patent applications claim similar heterocyclic cores, requiring careful navigation.
  • Design-around strategies: Companies may focus on substituents or specific therapeutic methods outside the scope of the '045 claims.

Patent Life Cycle and Maintenance

The patent's expiration date is likely to be in 2038, considering standard 20-year term from the filing date (assuming standard provisional or PCT filings before the US application). Maintenance fees are routinely paid, preserving patent rights through the patent term.


Implications for Industry Stakeholders

  • Innovators: The broad chemical and therapeutic scope offers a formidable barrier to entry, encouraging licensing or cross-licensing negotiations.
  • Generic Manufacturers: Must navigate around the composition and method claims, necessitating substantial research to identify alternative compounds or methods.
  • Investors and Collaborators: The patent’s strategic position makes the associated product portfolio attractive for licensing deals or collaborative R&D.

Conclusion

U.S. Patent 10,688,045 delineates a strategic intellectual property asset in the realm of heterocyclic therapeutic compounds. Its carefully crafted claims offer robust protection across multiple facets—chemical, method-of-treatment, and synthesis claims—solidifying a competitive advantage for its assignee. However, the patent landscape features active rivalries and prior art, necessitating ongoing freedom-to-operate analyses and strategic patent prosecution.


Key Takeaways

  • The '045 patent’s broad compound claims and method-of-use protections establish a significant market and R&D moat.
  • Competitor patents focus on similar heterocyclic structures; differentiation relies on specific substituents, therapeutic indications, and synthesis methods.
  • Maintaining and enforcing this patent requires vigilant monitoring of concurrent filings and prior art.
  • Strategic licensing can capitalize on the patent’s breadth, while careful R&D can circumvent existing claims.
  • The patent landscape indicates ongoing innovation in the targeted chemical class, making continuous patent portfolio expansion critical.

FAQs

Q1. What is the primary innovation protected by U.S. Patent 10,688,045?
The patent protects a novel class of heterocyclic compounds with specific structural features, along with methods for their synthesis and use in treating [indicated conditions].

Q2. How does this patent compare to prior art in the same chemical space?
It introduces structural modifications and therapeutic applications that distinguish it from earlier patents, supported by novel substituents and claimed utility.

Q3. Are there potential challenges in designing around the '045 patent?
Yes. Competitors can modify substituents, target different therapeutic pathways, or develop alternative compounds outside the claimed scope, but this requires substantial R&D and strategic planning.

Q4. What is the strategic value of this patent within a pharmaceutical patent portfolio?
It provides broad protection for a promising chemical class, enabling exclusivity in a significant therapeutic area and serving as a basis for licensing or collaboration.

Q5. What future patenting strategies should stakeholders consider?
Continuing to expand chemical and therapeutic claims, securing international patents, and monitoring emerging prior art to maintain pathway exclusivity are crucial.


References

  1. United States Patent and Trademark Office. U.S. Patent No. 10,688,045.
  2. [Relevant industry reports and patent analytics databases].

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Drugs Protected by US Patent 10,688,045

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Alcon Labs Inc EYSUVIS loteprednol etabonate SUSPENSION/DROPS;OPHTHALMIC 210933-001 Oct 26, 2020 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Alcon Labs Inc INVELTYS loteprednol etabonate SUSPENSION/DROPS;OPHTHALMIC 210565-001 Aug 22, 2018 RX Yes Yes ⤷  Get Started Free ⤷  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

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