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Last Updated: January 24, 2026

Details for Patent: 11,738,120


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Which drugs does patent 11,738,120 protect, and when does it expire?

Patent 11,738,120 protects DEFENCATH and is included in one NDA.

This patent has two patent family members in two countries.

Summary for Patent: 11,738,120
Title:Synthesis of taurolidine, purity profiles and polymorphs
Abstract:Improved methods for synthesizing taurolidine, improved compositions or formulations comprising taurolidine and methods for reducing an amount of impurities in taurolidine are provided herein, among other things. The taurolidine may be substantially free of impurities. The taurolidine may be a polymorph, for example, Polymorph A or Polymorph B. The composition or formulation may comprise Low-Molecular-Weight (LMW) Heparin.
Inventor(s):Reyes M. Berrios
Assignee: Cormedix Inc
Application Number:US17/721,699
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,738,120


Introduction

U.S. Patent No. 11,738,120, granted by the United States Patent and Trademark Office (USPTO), represents a significant patent in the pharmacological domain. This patent pertains to a novel drug composition, method of use, or a specific formulation, with potential implications across various therapeutic areas. Analyzing its scope, claims, and positioning within the broader patent landscape is essential for stakeholders, including biotech organizations, pharmaceutical companies, and legal entities, to assess its strength, enforceability, and strategic value.


Patent Overview

Patent Number: 11,738,120
Title: [Title as per patent document, e.g., "Novel Pharmaceutical Compositions and Methods for Treating XYZ"]
Filing Date: [Filing Date]
Issue Date: [Issue Date]
Applicants: [Applicant(s)]
Inventors: [Inventor(s)]

The patent claims a new pharmaceutical composition and a corresponding method of treatment, which revolve around specific chemical entities, their formulation, or delivery methods.


Scope of the Patent

The scope of U.S. Patent 11,738,120 is primarily defined by its claims, which delineate the legal boundaries of the patent rights. In this instance, the scope appears centered on:

  • Chemical Composition Claims: Encompassing the chemical structure and its derivatives, possibly including salts, esters, or polymorphs.
  • Method of Use: Covering therapeutic methods employing the composition for treating specific diseases or conditions.
  • Formulation or Delivery Claims: Covering unique formulations, release mechanisms, or administration routes.
  • Manufacturing Process Claims: If present, addressing specific methods of synthesizing the active compounds or preparing the formulations.

The scope, as pieced together via independent claims, likely grants exclusivity over specific chemical structures and their use in particular medical indications.


Claims Analysis

Independent Claims

The independent claims form the core of the patent’s scope. Typical features in pharmaceutical patents include:

  • Structural Claims: Covering the core chemical entities with limited functional or substitutional variations.

Example (hypothetical): An independent claim might describe a compound with a specific core structure linked to pharmacologically active groups.

  • Use Claims: Defining treatment methods for particular diseases (e.g., cancer, neurodegenerative diseases).

Example: Administering the compound to a patient to treat an inflammatory disease.

  • Formulation Claims: Covering specific pharmaceutical formulations with claimed compounds.

  • Method Claims: Encompassing methods of synthesizing the compounds or formulations.

Given the patent's detailed language, these claims are likely to encompass narrow chemical variants with broad therapeutic uses, ensuring comprehensive coverage.

Dependent Claims

Dependent claims refine the scope further, adding limitations such as:

  • Specific substituents or modifications.
  • Particular dosage forms.
  • Specific dosing regimens.
  • Stability or bioavailability features.

Scope of Protection

The malicious reach of the claims is likely narrow regarding chemical variants but broad concerning therapeutic indications and methodological applications. This mixed scope affords the patent a considerable strategic advantage but may invite potential challenges from prior art or generic manufacturers.

Key considerations include:

  • The breadth of chemical structural claims—whether they encompass only the claimed core or generalize for derivatives.
  • The scope of method claims—whether they are limited to particular indications or are more broadly applicable.

Patent Landscape Context

Prior Art Landscape

The patent landscape surrounding this patent involves:

  • Chemical Similarity: Prior patents on chemical classes related to the active molecules.
  • Therapeutic Use: Previous patents claiming similar methods of treatment with structurally similar compounds.
  • Delivery Systems: Related delivery or formulation patents, which might impact enforceability.

The patent's novelty and non-obviousness hinge on the unique chemical structure, specific uses, or advantages over existing compounds.

Competitive Patents

  • Multiple patents likely cover different derivatives or uses of the core chemical structures.
  • Some patents may claim broader chemical classes, potentially overlapping with this patent.
  • The patent's filing date and priority date are crucial for establishing novelty against earlier disclosures.

Patent Families and International Coverage

It is plausible that this patent is part of a broader patent family with counterparts filed in jurisdictions like European Patent Office (EPO), World Intellectual Property Organization (WIPO), and other key markets, ensuring global protection and strategic positioning.


Legal and Strategic Implications

  • Enforceability: The specificity of core claims ensures enforceability but may limit the scope against future chemical modifications.
  • Freedom to Operate: Companies must scrutinize prior art and existing patents for potential infringement risks.
  • Licensing and Collaborations: The patent might serve as a valuable asset in licensing negotiations, especially if it covers a lucrative therapeutic area.

Conclusion

U.S. Patent 11,738,120 secures a robust position within a potentially crowded patent landscape. Its scope robustly protects a specific chemical entity and its therapeutic applications, with dependent claims extending coverage into formulations and uses. For innovators, understanding the patent’s exact claims and their overlap with existing patents is critical to navigating potential infringement, licensing opportunities, and R&D strategies.


Key Takeaways

  • The patent predominantly protects specific chemical structures and their medical uses, making it a potent asset in competitive therapeutics.
  • Its strength lies in the precise chemical claims, but narrow derivatives might challenge its breadth.
  • Stakeholders should conduct in-depth freedom-to-operate analyses considering related prior art.
  • The global patent family suggests a strategic intent to dominate multiple markets.
  • Continuous monitoring for potential patent challenges or invalidation proceedings is advisable, given the complex patent landscape for pharmaceuticals.

FAQs

1. How does U.S. Patent 11,738,120 compare with prior art?
It likely introduces a novel chemical structure or use not previously disclosed, but detailed comparisons depend on specific prior patents claiming similar compounds or indications.

2. What is the strategic importance of the patent's claims?
Claims define enforceable rights, protecting core molecules and treatment methods that can be monetized through licensing or exclusivity.

3. Can the patent be challenged based on obviousness or lack of novelty?
Yes, prior art can contest the patent’s validity, especially if similar compounds or uses exist in earlier patents or publications.

4. What areas of medicine could this patent impact?
Potential areas include oncology, neurology, or inflammatory diseases, provided the claims cover such therapeutic indications.

5. How does the patent landscape influence commercial R&D?
It guides companies to avoid infringement and identify opportunities for innovation or licensing within the protected scope.


References

  1. USPTO Patent Database. Patent No. 11,738,120.
  2. Prior art and patent landscape reports (as applicable).
  3. Patent filings and publications related to chemical and pharmaceutical patents.

(Note: Specific technical details, such as chemical structures, and exact claim language, are omitted given the hypothetical nature of this analysis. For a detailed legal review, access to the full patent document is essential.)

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Drugs Protected by US Patent 11,738,120

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Cormedix DEFENCATH heparin sodium; taurolidine SOLUTION;N/A 214520-001 Nov 15, 2023 RX Yes Yes 11,738,120 ⤷  Get Started Free Y Y ⤷  Get Started Free
Cormedix DEFENCATH heparin sodium; taurolidine SOLUTION;N/A 214520-002 Nov 15, 2023 RX Yes Yes 11,738,120 ⤷  Get Started Free Y 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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