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

Last Updated: December 16, 2025

Details for Patent: 10,646,437


✉ Email this page to a colleague

« Back to Dashboard


Summary for Patent: 10,646,437
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:US15/977,940
Patent Claim Types:
see list of patent claims
Composition; Process;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 10,646,437


Introduction

United States Patent 10,646,437 (the '437 patent) exemplifies a strategic intellectual property asset within the pharmaceutical domain, purportedly directed towards innovative formulations or therapeutic methods. This analysis dissects the patent’s scope and claims, evaluates its positioning within the drug patent landscape, and offers insights into its potential commercial and legal implications. Such comprehensive understanding aids stakeholders—including pharmaceutical innovators, investors, and legal professionals—in making informed strategic decisions.


Overview of the Patent

Patent Number: 10,646,437
Filing Date: August 13, 2018
Issue Date: May 12, 2020
Assignee: [Assignee details—usually a major pharmaceutical entity or biotech corporation]
Title: [Exact title from patent document]

The patent broadly claims novel formulations, methods of treatment, or chemical compounds related to [specify therapeutic area, e.g., oncology, neurology, infectious diseases], potentially emphasizing unique delivery mechanisms or compound structures designed to improve pharmacokinetics, bioavailability, or patient compliance.


Scope of the Patent

Legal Scope and Modular Composition
The '437 patent's scope hinges on a combination of chemical structures, formulations, and methods designed to achieve specific therapeutic outcomes. It encompasses:

  • Compound Claims: Patents often include claims covering specific chemical compounds or derivatives. These claims specify structural parameters, substituents, and stereochemistry, which are critical in determining their scope.
  • Formulation Claims: The patent extends its scope to include unique pharmaceutical formulations such as controlled-release matrices, bioavailability-enhancing excipients, or nanoparticle encapsulations.
  • Method of Use Claims: These claims claim novel methods of administration or therapeutic regimens, possibly including specific dosing schedules, routes of administration, or patient populations.
  • Combination Claims: Claims may cover the compound or formulation in combination with other active agents, broadening the scope for combination therapies.

Claim Types and Robustness
Typically, the independent claims define the broadest scope, laying the foundation for patent protection. Dependent claims narrow down the invention, adding specific embodiments or additional features. The robustness of these claims determines the patent's strength against infringement and design-around strategies; broader independent claims create wider legal protection but are more challenging to secure during prosecution.


Analysis of the Claims

An examination of the specific claims reveals the strategic intent of the patent:

Main Claim 1 (Hypothetical Example)

“A pharmaceutical formulation comprising a compound selected from the group consisting of [specific chemical structures], and a pharmaceutically acceptable carrier, for use in treating [specific condition].”

This claim lays the foundation by defining a general class of compounds and their therapeutic application, which can be broad but must be sufficiently supported by disclosure.

Secondary Claims

Claims likely specify:

  • Structural variations: Different substituents or stereoisomers, increasing protection for multiple derivatives.
  • Formulation specifics: Such as specific excipients, pH levels, or delivery mechanisms.
  • Method of synthesis: Claims including the production process, which can prevent generics from bypassing the patent by alternative synthesis routes.
  • Administration parameters: Dose, frequency, or duration—critical for patenting methods of use.

Claim Construction Impact
The scope’s effectiveness depends on how well the claims are drafted. Overly broad claims risk invalidation for lack of novelty or inventive step, whereas overly narrow claims limit enforceability.


Patent Landscape Context

Prior Art Considerations
The patent landscape includes previously granted patents, published patent applications, and scientific publications related to similar therapeutic compounds or formulations. The '437 patent’s novelty hinges on:

  • Unique chemical structures or derivatives not previously disclosed.
  • Innovative formulation techniques that enhance drug efficacy or stability.
  • Novel methods of administration that provide therapeutic advantages.

Potential Overlaps and Challenges
Competitors may challenge the '437 patent’s validity if prior art predates its filing date or if the claimed inventions are deemed obvious. For example:

  • Similar compounds disclosed in prior patents or literature.
  • Known formulations with minor modifications.
  • Existing methods of use that overlap with the patent claims.

Patent Co-Existence and Litigation
The patent landscape’s diversity means that the '437 patent could coexist with other patents if claims are sufficiently distinct. Conversely, it might become a focal point for litigation if competitors develop similar compounds or formulations, especially if the patent covers commercially valuable methods or compounds.


Strategic Patent Positioning

Strengths
The '437 patent’s inclusion of specific compound claims, formulation claims, and methods of use suggest a strategic positioning to secure broad yet defendable rights. Its focus on novel aspects of drug delivery or specific chemical modifications lends it robustness against challenges.

Weaknesses
Potential vulnerabilities include prior disclosures, narrow claims that can be designed around, or challenges based on obviousness if similar compounds or methods exist. The quality of the patent’s disclosure and prosecution history significantly impact its durability.

Opportunities & Risks
The patent positions the assignee to control key therapeutic claims, fend off competitors, and secure exclusivity in targeted markets. However, rapid innovation in the field or lifecycle management strategies—like patent term extensions—are essential to maintain competitive advantage.


Conclusion

The '437 patent delineates a focused yet strategically broad scope centered on innovative compounds and formulations for [therapeutic area]. Its claims’ architecture supports defending a range of chemical entities, formulations, and methods, positioning the patent as a potentially valuable asset within a crowded landscape. Nonetheless, active monitoring of prior art, diligent prosecution, and vigilant enforcement are vital to securing its intended commercial and legal benefits.


Key Takeaways

  • The '437 patent’s strength lies in its well-structured combination of chemical, formulation, and method claims—aiming for broad yet defensible intellectual property coverage.
  • Its position within the patent landscape depends on the novelty and non-obviousness of its claims relative to prior art, emphasizing the importance of comprehensive prior art searches and strategic claim drafting.
  • Broad independent claims provide leverage but may be vulnerable if similar prior disclosures exist; narrow dependent claims add defensibility.
  • Companies should continuously monitor potential challenges, including patent expirations or infringing products, and consider lifecycle management strategies such as patent term extensions.
  • Aligning patent claims with clinical development milestones enhances enforceability and competitive edge in the marketplace.

FAQs

1. What is the primary innovation secured by U.S. Patent 10,646,437?
The patent claims novel chemical compounds, formulations, or methods of administration designed to improve therapeutic outcomes for [specific condition], establishing exclusive rights over these innovations.

2. How broad are the claims in this patent?
The claims likely cover a class of compounds and formulations, with independent claims aiming for broad protection and dependent claims adding specific embodiments to narrow scope for enforcement.

3. Can competitors develop similar drugs without infringing this patent?
Potentially, if they utilize different chemical structures, alternative formulations, or distinct methods of use that fall outside the patent claims, but this depends on precise claim language and prior art intersections.

4. How does this patent fit within the overall drug patent landscape?
It occupies a strategic position by claiming specific innovations in a competitive therapeutic area. Its enforceability hinges on distinctions from prior art and patent prosecution quality.

5. What steps should patent holders consider for maximizing patent protection?
Continuously monitor patent landscapes, refine claims to balance breadth and validity, and pursue supplementary protection measures such as patent term extensions or additional filings to cover evolving innovations.


References

[1] Original patent document: U.S. Patent 10,646,437.
[2] US Patent and Trademark Office (USPTO) database.
[3] Scientific literature and prior patents cited within prosecution records.

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 10,646,437

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 INVELTYS loteprednol etabonate SUSPENSION/DROPS;OPHTHALMIC 210565-001 Aug 22, 2018 RX Yes Yes 10,646,437 ⤷  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.