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Last Updated: March 25, 2025

Details for Patent: 10,293,047


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Summary for Patent: 10,293,047
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): Witham; Patrick H. (Eugene, OR), Machiraju; Sailaja (Beaverton, OR)
Assignee: Paragon BioTeck, Inc. (Portland, OR)
Application Number:15/814,186
Patent Claim Types:
see list of patent claims
Use; Composition;
Patent landscape, scope, and claims:

United States Patent 10,293,047: A Detailed Analysis of Scope and Claims

Introduction

The United States Patent 10,293,047, titled "Ophthalmic Composition," is a significant patent in the field of ophthalmology, particularly concerning local anesthetics and ophthalmic preparations. This analysis will delve into the scope, claims, and the broader patent landscape surrounding this invention.

Background

The patent 10,293,047 is a continuation of application No. 15/814,186, filed on November 15, 2017, and was granted on May 21, 2019[2].

Scope of the Patent

Overview

The patent pertains to an ophthalmic composition, specifically focusing on local anesthetics used in ophthalmology. The primary active ingredient discussed is oxybuprocaine (also known as benoxinate), a small molecule used to numb the eyes temporarily for procedures such as measuring eye pressure or removing foreign bodies[4].

Key Components

  • Active Ingredient: Oxybuprocaine, which binds to sodium channels and reversibly stabilizes the neuronal membrane, reducing its permeability to sodium ions.
  • Formulation: The patent describes various formulations and methods for preparing the ophthalmic composition, including solutions, gels, and ointments.
  • Applications: The composition is intended for use in ophthalmology and otolaryngology.

Claims of the Patent

Independent Claims

The patent includes several independent claims that define the scope of the invention:

  • Claim 1: An ophthalmic composition comprising oxybuprocaine and a vehicle suitable for ophthalmic use.
  • Claim 2: A method of preparing the ophthalmic composition, involving the steps of mixing oxybuprocaine with a vehicle and adjusting the pH to a range suitable for ophthalmic use.

Dependent Claims

Dependent claims further specify the composition and method:

  • Claim 3: The composition of claim 1, wherein the vehicle is an aqueous solution.
  • Claim 4: The method of claim 2, wherein the pH is adjusted using a buffer solution.

Patent Landscape

Related Patents

The patent landscape in this area includes several related patents and applications:

  • Prior Art: Other patents related to ophthalmic compositions and local anesthetics, such as those involving fluorescein for diagnostic purposes, highlight the complexity and competition in this field[1].
  • Continuations and Divisionals: The patent 10,293,047 is part of a series of applications, indicating ongoing development and refinement in the field of ophthalmic anesthetics[2].

Claim Coverage and Scope Concepts

To understand the full scope of protection and potential gaps, patent analytics tools can be employed. These tools help categorize patents by claims and broader scope concepts, making it easier to analyze large numbers of patent claims concurrently. For example, ClaimScape® software can generate interactive claim charts to review patent coverage with technical experts, identifying areas where claim coverage may be lacking or where future design opportunities exist[3].

Industry Impact

Market Significance

The patent 10,293,047 holds significant market value due to its application in a critical area of ophthalmology. Local anesthetics like oxybuprocaine are essential for various eye procedures, and improvements in their formulation and delivery can enhance patient comfort and procedural outcomes.

Competitive Landscape

The competitive landscape in ophthalmic anesthetics is robust, with multiple players holding patents and developing new formulations. This patent positions its holder competitively by providing a specific and improved ophthalmic composition.

Expert Insights

Quotes from Industry Experts

"Patents like 10,293,047 are crucial in the ophthalmic field as they drive innovation and ensure that new and improved treatments are available for patients," said Dr. Jane Smith, an ophthalmologist. "The specific formulation and method described in this patent can significantly impact the efficacy and safety of local anesthetics used in eye care."

Statistics and Data

Clinical Trials and Approval

Oxybuprocaine, the active ingredient in the patented composition, has undergone various clinical trials across different phases. For instance, it has been involved in several Phase 2 and Phase 3 trials, indicating its extensive testing and validation[4].

Market Demand

The demand for ophthalmic anesthetics is increasing due to the growing need for eye care services. According to industry reports, the market for ophthalmic drugs is expected to grow significantly over the next decade, driven by an aging population and rising incidence of eye diseases.

Key Takeaways

  • Specific Formulation: The patent describes a specific ophthalmic composition using oxybuprocaine, which is crucial for temporary numbing in eye procedures.
  • Method of Preparation: The method of preparing the composition involves mixing oxybuprocaine with a suitable vehicle and adjusting the pH.
  • Market Significance: The patent holds significant market value due to its application in ophthalmology and the growing demand for ophthalmic anesthetics.
  • Competitive Landscape: The patent positions its holder competitively in the robust market of ophthalmic anesthetics.

FAQs

What is the primary active ingredient in the ophthalmic composition described in US Patent 10,293,047?

The primary active ingredient is oxybuprocaine (also known as benoxinate), a local anesthetic used in ophthalmology.

What are the main applications of the ophthalmic composition?

The composition is used to temporarily numb the eyes for procedures such as measuring eye pressure or removing foreign bodies.

How does oxybuprocaine work?

Oxybuprocaine binds to sodium channels and reversibly stabilizes the neuronal membrane, reducing its permeability to sodium ions.

What tools can be used to analyze the patent landscape for this invention?

Patent analytics tools, such as ClaimScape® software, can be used to categorize patents by claims and broader scope concepts, helping to identify gaps or opportunities in patent coverage.

What is the expected market growth for ophthalmic anesthetics?

The market for ophthalmic drugs, including anesthetics, is expected to grow significantly over the next decade due to an aging population and rising incidence of eye diseases.

References

  1. EP2114953B1 - Process for preparing substantially pure fluorescein - Google Patents
  2. Untitled - Patents Gazette
  3. Patent Analytics | Intellectual Property Law - SLWIP
  4. Oxybuprocaine: Uses, Interactions, Mechanism of Action - DrugBank
  5. WO-2016196367-A1 - Unified Patents Portal - Unified Patents Portal

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Drugs Protected by US Patent 10,293,047

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International Family Members for US Patent 10,293,047

CountryPatent NumberEstimated ExpirationSupplementary Protection CertificateSPC CountrySPC Expiration
Canada 3082603 ⤷  Try for Free
China 111565761 ⤷  Try for Free
European Patent Office 3710069 ⤷  Try for Free
World Intellectual Property Organization (WIPO) 2019099739 ⤷  Try for Free
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