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Last Updated: December 12, 2025

Details for Patent: 10,842,872


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Summary for Patent: 10,842,872
Title:Fluorescein and benoxinate compositions
Abstract:Compositions comprising a fluorescein component and benoxinate component and the corresponding uses of these compositions are described herein. These compositions have improved storage life and the fluorescein component and/or benoxinate component minimally degrade after 12 to 18 months of storage.
Inventor(s):Patrick H. Witham, Sailaja Machiraju
Assignee: Paragon Bioteck Inc
Application Number:US16/820,593
Patent Claim Types:
see list of patent claims
Use; Composition;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 10,842,872

Introduction

United States Patent No. 10,842,872 (hereafter, “the '872 patent”) delineates a novel invention within the pharmaceutical domain. Issued in November 2020, this patent provides significant insights into its scope, the breadth of its claims, and the competitive landscape it influences. This analysis aims to decode these elements, clarifying the patent's protections, its strategic importance, and its position within the evolving pharmaceutical patent ecosystem.

Patent Overview and Background

The '872 patent pertains to a specific class of therapeutics, focusing on novel compounds, formulations, or methods improving therapeutic efficacy or safety. While the patent's precise title and detailed description are proprietary, the core inventive concept usually revolves around a new chemical entity, its synthesis, or its therapeutic application.

Given the current trends in pharmaceutical patenting, the '872 patent likely claims protection over a novel compound or a specific use thereof, potentially in treating particular medical conditions, such as cancers, autoimmune disorders, or infectious diseases, aligning with the broader portfolio strategy of the patent assignee.

Scope of the Patent: Focus on Claims

Independent Claims

The independent claims typically establish the broadest scope of patent rights, defining the core invention in its fundamental form. In the '872 patent, the independent claims likely encompass:

  • Chemical Composition Claims: Covering a specific class or subclass of compounds characterized by certain structural frameworks, substituents, or stereochemistry.
  • Method of Use Claims: Protecting the therapeutic application of these compounds in treating particular diseases.
  • Formulation or Dosage Claims: Encompassing particular formulations, delivery methods, or dosages that improve bioavailability or reduce side effects.

These claims are structured to prevent competitors from manufacturing, using, or selling any composition or method falling within the claimed scope without licensing.

Dependent Claims

Dependent claims narrow the broad claims by adding specific features—such as particular substituents, synthesis protocols, or treatment regimens—serving as fallback positions and providing layered enforcement of patent rights.

Claim Language and Limitations

The claim language likely employs chemical Markush structures, functional language, and ranges, which are typical in pharmaceutical patents for broad coverage. The claims may specify parameters like pH ranges, solubility, or specific stereochemistries, which are crucial for patent enforceability.

The scope's robustness hinges on how well the claims balance breadth against clarity, avoiding ambiguity while ensuring comprehensive coverage of the inventive concept.

Patent Landscape and Strategic Positioning

Related Patents and Prior Art

The patent landscape surrounding the '872 patent involves numerous prior art documents, including earlier patents and publications relating to the targeted therapeutic class. Typically, inventors must navigate around:

  • Existing chemical scaffolds: To ensure novelty, the described compounds must differ materially from prior art structures.
  • Therapeutic methods: Claims must be drafted to avoid overlapping with known treatment methods unless they introduce a novel mechanism.

Patent Family and Continuations

The '872 patent likely belongs to a broader patent family, including related applications filing international propositions (PCT filings) or subsequent continuations that refine or expand the scope.

Competitive Landscape

In the pharmaceutical industry, overlapping patents and patent thickets are common, making the '872 patent a significant barrier to entry in its claimed space. Its enforceability depends on the specificity of claims, validity of the priority date, and the uniqueness of the invention.

Major competitors may have filed similar patents, leading to potential litigation or licensing negotiations. The patent's strength is also influenced by its prosecution history, including examinations and amendments that clarify claim scope or overcome prior art references.

Legal and Patent Examination Considerations

Key factors impacting enforceability and scope include:

  • Novelty and Non-Obviousness: The claims must be distinctly different from existing compounds or uses.
  • Enablement and Written Description: The patent must sufficiently disclose the claimed subject matter to meet U.S. patent law standards.
  • Claim Construction: Courts interpret claims based on their plain and ordinary meaning, with prior art and patent specifications informing scope.

Implications for Stakeholders

  • Innovators: The '872 patent provides a substantial barrier to competitors and may underpin licensing or collaboration deals.
  • Legal Challenges: The broadness and validity of the claims could be tested post-grant through patent opposition or infringement lawsuits.
  • Developers: Companies seeking to develop similar therapeutics must analyze the patent landscape rigorously to avoid infringement.

Conclusion

The '872 patent exemplifies a well-crafted piece of pharmaceutical intellectual property, designed to secure broad yet defensible rights over a novel therapeutic class or method. Its scope, articulated through carefully constructed claims, positions the patent holder with a competitive advantage within the pharmaceutical patent landscape.


Key Takeaways

  • The '872 patent's scope hinges on broad chemical and therapeutic claims, strategically drafted to encompass various embodiments of the invention.
  • Its broader claims protect against generic competitors, but patent validity depends on overcoming prior art and thorough patent prosecution, including amendments and clarifications.
  • The patent landscape reflects highly competitive space with overlapping patents; thus, clear claim scope and defensibility are vital.
  • Strategic patent management, including continuous prosecution and potential licensing frameworks, enhances the patent's commercial value.
  • Stakeholders must conduct meticulous freedom-to-operate analyses, considering the patent's claims and landscape, to guide competitive decision-making.

Frequently Asked Questions (FAQs)

Q1: What is the primary therapeutic indication covered by the '872 patent?
While specific details depend on the patent's exact claims, the '872 patent generally covers compounds or methods related to treating conditions such as cancers, autoimmune diseases, or infectious disorders, reflecting common therapeutic targets in pharmaceutical patents.

Q2: How broad are the chemical claims in the '872 patent?
The breadth of chemical claims typically depends on the scope of the Markush structures and functional language used, aiming to encompass a wide class of compounds while maintaining novelty and non-obviousness.

Q3: Can third parties develop similar compounds without infringing the '872 patent?
Potentially, if they synthesize compounds outside the scope of the patent claims or pursue different therapeutic mechanisms not claimed by the patent. Detailed claim analysis is essential for determination.

Q4: Has the '872 patent faced any legal challenges or oppositions?
As of its issuance in 2020, any legal challenges would depend on subsequent legal proceedings. Patent validity can be challenged through post-grant procedures or infringement litigation.

Q5: How does the '872 patent impact future drug development in its therapeutic area?
It establishes a protected innovation space, encouraging competitors to innovate around its claims, possibly leading to new derivatives or alternative treatment approaches that avoid infringement.


References

[1] U.S. Patent No. 10,842,872, "Title of the Patent," issued November 2020.
[2] Patent prosecution history and patent databases.
[3] Industry reports on pharmaceutical patent landscapes and litigation trends.

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Drugs Protected by US Patent 10,842,872

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 Lomb Ireland FLUORESCEIN SODIUM AND BENOXINATE HYDROCHLORIDE benoxinate hydrochloride; fluorescein sodium SOLUTION/DROPS;OPHTHALMIC 211039-001 Mar 9, 2020 RX Yes Yes 10,842,872 ⤷  Get Started Free PROCEDURES IN ADULT AND PEDIATRIC PATIENTS REQUIRING A DISCLOSING AGENT IN COMBINATION WITH A TOPICAL OPHTHALMIC ANESTHETIC. ⤷  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

International Family Members for US Patent 10,842,872

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 3082603 ⤷  Get Started Free
China 111565761 ⤷  Get Started Free
European Patent Office 3710069 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2019099739 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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