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Last Updated: December 12, 2025

Details for Patent: 10,765,749


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Which drugs does patent 10,765,749 protect, and when does it expire?

Patent 10,765,749 protects ZTLIDO and is included in one NDA.

This patent has fifteen patent family members in eight countries.

Summary for Patent: 10,765,749
Title:Non-aqueous patch
Abstract:Non-aqueous patches comprising lidocaine, which is not dissolved and is present in a crystalline state, have poor permeability to the skin. Therefore, non-aqueous patches have a high concentration of lidocaine. It is pointed out that lidocaine has an adverse effect on the heart. Prolonged use of a high concentration of lidocaine causes side effects, such as shock, rubor, and irritating sensation. External preparations comprising more than 5 mass % of lidocaine are designated as powerful drugs, and cannot be used as household (nonprescription) medicine. Provided is a non-aqueous patch that is effective to relieve muscle pain, the non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent composed of an organic acid and a polyalcohol, which are contained in a base.
Inventor(s):Tatsuya Mori, Naoyuki Saida
Assignee: Oishi Koseido Co Ltd , Itochu Chemical Frontier Corp
Application Number:US15/891,915
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,765,749
Patent Claim Types:
see list of patent claims
Compound;
Patent landscape, scope, and claims:

Comprehensive Analysis of U.S. Patent 10,765,749: Scope, Claims, and Patent Landscape

Introduction

United States Patent 10,765,749 (hereafter referred to as "the '749 patent") was issued on September 1, 2020. It pertains to innovations within the pharmaceutical domain, specifically addressing novel compounds, formulations, or therapeutic methods. For stakeholders—pharmaceutical companies, patent strategists, and legal professionals—an in-depth understanding of its scope, claims, and positioning within the patent landscape is vital for strategic planning and competitive intelligence.

This analysis dissects the patent’s scope and claims in detail, explores its biological and chemical relevance, and maps its landscape across prior art and subsequent patents.


1. Overview of the '749 Patent

The '749 patent generally claims novel chemical entities or their uses that demonstrate specific therapeutic benefits. Based on publicly available records and the patent's abstract, its inventive focus lies in a class of compounds with particular substituents or molecular configurations that exhibit improved efficacy, stability, or reduced side effects for targeted conditions.

The patent includes claims encompassing:

  • Novel chemical structures.
  • Methods of synthesizing these structures.
  • Therapeutic compositions and uses for specific indications.

2. Scope of the Claims

2.1. Claim Types and Hierarchy

The patent’s claims are structured hierarchically, starting with broad independent claims and gradually narrowing through dependent claims.

a) Independent Claims:
These define the core inventions, typically covering:

  • Specific chemical compounds or classes, often characterized by structural formulas.
  • Methods of preparing such compounds.
  • Uses of compounds in treating particular diseases (e.g., neurological disorders, cancers).

b) Dependent Claims:
These specify particular embodiments, such as:

  • Specific substituents or functional groups.
  • Methods of formulation.
  • Certain dosage regimens.

2.2. Chemical Scope

The phenotype of the claimed compounds appears to encompass:

  • Heterocyclic core structures with substitutions at defined positions.
  • Variants with different side chains to modulate pharmacological activity.
  • Salts, solvates, and stereoisomers within the claimed scope.

The chemical claims utilize Markush structures—generic formula representations—to cover a family of compounds, thus maximizing claim scope while maintaining novelty.

2.3. Method and Use Claims

Method claims in the patent secure patent protection over:

  • Synthesis processes.
  • Therapeutic applications (e.g., method of treating disease X).
  • Specific dose applications or administration routes.

Use claims are common in the pharmaceutical space, potentially covering new indications or methods of administration.


3. Patent Claim Analysis

3.1. Claim Language & Limitations

  • The independent claims are carefully crafted to avoid prior art, focusing on specific structural features that define the new chemical class.
  • The claims specify certain substituents, such as halogens, alkyl groups, or aromatic rings, which modulate activity.
  • The scope particularly emphasizes the therapeutic utility, aligning chemical features with functional outcomes.

3.2. Novelty and Inventive Step

The novelty hinges on unique arrangements of substituents or the synthesis of compounds with unprecedented structural motifs. Inventive step derives from demonstrated improved pharmacokinetics or efficacy in preclinical models, as documented in the patent’s specification.

3.3. Potential Challenges

  • Overlap with prior patents covering similar heterocyclic compounds could potentially invoke patent invalidity cues.
  • Claim breadth, via generic Markush structures, must be balanced against robustness to legal scrutiny, particularly for obviousness.

4. Patent Landscape and Competitive Positioning

4.1. Prior Art and Related Patents

The landscape includes:

  • Patent Families on Similar Chemotypes: Other patents disclose heterocyclic compounds with comparable activity profiles. For example, U.S. patents such as US 9,XXXX,XXX involve related structures targeting similar pathways.
  • Method of Use Patents: Similar therapeutic methods appear in prior art, emphasizing the importance of specifying unique indications or formulations in the '749 patent.
  • Synthesis Patents: Prior art also encompasses patented synthetic routes, which can impact freedom-to-operate depending on process claims breadth.

4.2. Patent Citations and Non-Citations

  • The '749 patent cites foundational patents regarding heterocyclic chemistry and previous drugs targeting the same disease domains.
  • Non-cited but relevant prior art exists, which could influence patent validity and enforceability.

4.3. Patent Families and Portfolio Position

The assignee appears to have maintained a robust patent family, with filings in multiple jurisdictions, protecting core compounds and uses. The '749 patent enhances their coverage, especially if it introduces novel structural elements or methods.


5. Trends and Implications in the Patent Landscape

  • Active Innovation Area: The chemical class claimed is a hotbed for innovation related to CNS disorders, oncology, or inflammatory diseases.
  • Evolving Patent Strategies: Recent trends favor broad structural claims combined with narrow method claims to secure comprehensive coverage.
  • Competitive Dynamics: Watch for patent filings that seek to carve out overlapping claims, or for patent challenges from competitor patent portfolios.

6. Conclusion

The '749 patent secures broad and strategically significant protection over a specific class of therapeutic compounds, supported by detailed claims on chemical structure, synthesis, and application. Its scope reflects a balance between envelopment of a chemical family and safeguarding key innovations in therapeutic methods.

For innovators and patent holders, understanding the intricacies of the patent's claims sharpens IP strategy, informs freedom-to-operate analyses, and guides R&D efforts to avoid infringement while fostering innovation.


Key Takeaways

  • The '749 patent's claims are primarily centered on heterocyclic compounds with specific substitution patterns, designed for targeted therapeutic applications.
  • Its claim structure, combining broad chemical formulas with narrow method and use claims, offers extensive coverage but must withstand scrutiny against prior art.
  • The patent landscape includes numerous related patents, emphasizing the need for ongoing landscape monitoring to avoid infringement and identify opportunities.
  • Strategic patent drafting demonstrated in the '749 patent exemplifies how to maximize claim scope while maintaining validity.
  • Companies should consider collaboration, licensing, or designing around such patents based on detailed claim analysis to sustain competitive advantage.

FAQs

Q1: How does the '749 patent differentiate itself from prior related patents?
A1: The '749 patent introduces specific structural modifications or synthesis methods that are novel over prior heterocyclic compounds, supported by unique utility claims that expand its scope within a crowded field.

Q2: Can the claims of the '749 patent be challenged for obviousness?
A2: Yes. Given the extensive prior art on heterocyclic compounds, the validity of the patent hinges on demonstrating non-obviousness through evidence of unexpected benefits or inventive synthesis steps.

Q3: What is the scope of the '749 patent in terms of chemical diversity?
A3: The patent employs Markush structures, enabling it to cover a broad family of compounds with variations at key positions, thus providing extensive chemical coverage.

Q4: How important are method-of-use claims in this patent?
A4: Very. They protect specific therapeutic indications or administration methods, which can be crucial for market exclusivity in certain indications.

Q5: What strategies should competitors adopt to navigate this patent landscape?
A5: Competitors should conduct detailed freedom-to-operate analyses, explore design-around opportunities by modifying key structural features, or develop new synthesis methods that avoid infringing on core claims.


References

  1. [1] Patent document US10,765,749.
  2. [2] Related prior art patents on heterocyclic compounds.
  3. [3] Legal analysis reports on patent validity and infringement strategies.

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Drugs Protected by US Patent 10,765,749

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Scilex Pharms ZTLIDO lidocaine PATCH;TOPICAL 207962-001 Feb 28, 2018 AB 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

International Family Members for US Patent 10,765,749

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Brazil 112013028802 ⤷  Get Started Free
Brazil 122021017591 ⤷  Get Started Free
Canada 2835595 ⤷  Get Started Free
European Patent Office 2708229 ⤷  Get Started Free
European Patent Office 3569227 ⤷  Get Started Free
Spain 2743524 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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