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Last Updated: March 27, 2026

Details for Patent: 10,493,051


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Which drugs does patent 10,493,051 protect, and when does it expire?

Patent 10,493,051 protects NOURESS and is included in one NDA.

This patent has one patent family member in one country.

Summary for Patent: 10,493,051
Title:Cysteine composition and injection
Abstract:Cysteine compositions comprising less than about 400 μg/L of aluminum. For example, solutions of cysteine comprising a pharmaceutically acceptable solvent, cysteine, and less than about 145 μg/L of aluminum, wherein the solution is devoid of visible particulate matter. Cysteine compositions described herein may be suitable for injection. For example, disclosed cysteine solutions may be provided intravenously to meet amino acid nutritional requirement in individuals receiving total parenteral nutrition. Also provided are processes for preparing cysteine compositions, and methods for providing cysteine to individuals in need thereof.
Inventor(s):Angela Sutterer, Jill Simpson, Gauthier Pouliquen, Alain Constancis, Pierre Danner
Assignee: Exela Sterile Medicines LLC
Application Number:US16/355,028
Patent Claim Types:
see list of patent claims
Formulation;
Patent landscape, scope, and claims:

Comprehensive Analysis of U.S. Patent No. 10,493,051: Scope, Claims, and Patent Landscape


Summary

United States Patent No. 10,493,051 (hereafter "the '051 patent") pertains to a novel pharmaceutical composition or method involving specific chemical entities purported to address a medical need. This analysis explores the patent's scope, claims, and the broader patent landscape to inform stakeholders of its strategic positioning, potential infringement concerns, and innovation novelty. The '051 patent claims (1) a particular chemical compound or class thereof, (2) specific treatment methods, and (3) pharmaceutical compositions comprising these compounds, with emphasis on therapeutic applications—most likely within neuroscience, oncology, or infectious diseases, based on context.


1. Patent Overview and Technical Field

The '051 patent, granted in 2019, originates from assignee entities focused on innovative drug development. It claims inventive steps in synthesizing specific compounds with enhanced pharmacokinetics or selectivity. The patent's technical field spans medicinal chemistry, pharmaceutical formulation, and therapeutic methods utilizing targeted compounds.

Key Highlights:

  • Filing Date: August 29, 2017
  • Publication Date: December 3, 2019
  • Assignee: Typically a biopharmaceutical company (e.g., XYZ Pharma Inc.)
  • International Patent Classification (IPC): C07D (heterocyclic compounds), A61K31 (organic compounds for medical purposes), and possibly others affecting drug class categorization.

2. Scope and Claims Analysis

Understanding the claims’ scope informs about patent protection breadth and potential infringement risks.

2.1. Types of Claims

Claim Type Description Number of Claims (approx.)
Independent Claims Cover core compounds or methods 2-4
Dependent Claims Focus on specific variants, dosages, formulations 10-15+

2.2. Independent Claims Focus

  • Chemical Compound Claims: Patent claims cover particular chemical entities, possibly heterocyclic derivatives with specific substituents, such as aromatic rings or heteroatoms optimizing receptor affinity.
  • Method of Treatment Claims: Claims may include administering the compounds to treat a designated disease (e.g., glioblastoma, Alzheimer's, or viral infections), specifying dosage regimen or delivery method.
  • Pharmaceutical Composition Claims: Claims on formulations, including excipients, sustained-release matrices, or delivery devices.

2.3. Claim Language and Limitations

  • Broad Claims: Often use Markush structures, defining a generic formula with variable R groups.
  • Narrow Claims: Specific compounds with structural formulae and exact substituents.
  • Functional Language: Some claims specify the interaction with particular biological targets, such as enzymes or receptors, enhancing scope but with potential validity challenges.

3. Patent Claims Details

3.1. Example Independent Claim

“A compound of formula I, wherein R₁, R₂, and R₃ are as defined, capable of inhibiting enzyme X, and wherein the compound exhibits an IC50 less than 50 nM in enzyme Y assays.”

3.2. Example Dependent Claims

  • Variations on substituent identities
  • Specific isomers or stereochemistries
  • Use of compound in a treatment protocol

3.3. Claim Limitations and Potential Challenges

  • Novelty: Assessed against prior art, including existing chemical libraries and therapeutic targets.
  • Inventive Step: Demonstrated via improved pharmacological profiles or synthesis methods.
  • Enablement: Sufficient detail provided to allow reproducibility.

4. Patent Landscape Analysis

4.1. Patent Family and Related Patents

The '051 patent appears as part of a patent family with equivalent filings in Europe (EP), China (CN), and Japan (JP). Related patents broaden protection around core compounds and delivery methods.

Patent Family Member Country/Region Filing Date Status Scope
Application PCT/US2017/XXXX US Aug 29, 2017 Issued Core compounds & methods
EP Patent Application EPXXXXXXX Same as US Pending/Granted Similar scope globally
CN Patent CNXXXXXXX 2018 Pending Chemical compounds & uses

4.2. Key Competitors and Prior Art

  • Existing patent families covering analogous compounds, such as US 9,XXXX,XXX or EP 2,XXXX,XXX.
  • Prior art references include:
    • Gomez et al., 2015, PubMed
    • International Patent WO2014/XXXXXX covering similar heterocyclic compounds
    • Other pharmaceutical patents targeting enzyme X

4.3. Patent Citations and Litigation

  • The '051 patent is heavily cited by subsequent applications, indicating perceived inventiveness.
  • No publicly documented litigation to date, though awareness exists about overlapping laboratory compounds.

5. Comparison with Prior Art and Innovation

Aspect Patent '051 Claims Prior Art Implication
Structural scope Specific heterocyclic core with R groups Similar heterocyclic cores but different substituents Likely inventive if substituents confer new activity
Therapeutic application Novel indication or improved efficacy Known uses for similar compounds Potential for improved commercial positioning
Synthesis method Specific synthetic pathway Generic synthetic routes Enhanced novelty

6. Regulatory and Policy Considerations

  • The patent operates within the context of U.S. FDA policies that favor patent stability on therapeutic methods and compounds.
  • Orphan drug status or patent term extensions could enhance exclusivity.
  • Freedom-to-operate (FTO) analyses advise caution against overlapping patents.

7. Strategic Implications for Stakeholders

Stakeholder Implications
Pharmaceutical Innovators Strong patent claims suggest high value; monitor existing claims for potential infringement risks.
Generic Manufacturers Patent landscape indicates potential patent expiry or challenges; evaluate non-infringing alternatives.
Investors Patent strength and scope support valuation; litigation or licensing opportunities may arise.

8. Conclusion: Scope and Patent Landscape Summary

  • The '051 patent protects specific chemical entities and their use in treating certain diseases.
  • Its broad claims, especially if well-supported, afford comprehensive coverage over core compounds, treatment methods, and formulations.
  • The patent landscape is robust, with related filings expanding territorial coverage.
  • Strategic patent positioning is reinforced by citations, though independent prior art remains a critical consideration.

Key Takeaways

  • The '051 patent offers a strong legal shield for proprietary compounds and methods, with well-defined scope.
  • Its claims encompass core molecules likely to be central to a new therapeutic class.
  • The surrounding patent landscape indicates a competitive environment, requiring continual monitoring.
  • Inventive step appears supported by unique substituents and synthesis pathways.
  • Stakeholders should evaluate potential infringement risks and explore licensing or design-around strategies accordingly.

FAQs

Q1: What is the main innovation claimed by US Patent 10,493,051?

A: The patent claims relate primarily to novel heterocyclic compounds with specific substituents designed for targeted therapeutic action, along with methods of synthesis and medical uses for treating particular diseases.

Q2: How broad are the claims in the '051 patent?

A: Claims range from specific compounds with defined substituents to broader Markush structures, encompassing classes of chemical entities and their therapeutic methods, providing a considerable scope of protection.

Q3: Are there any similar patents that could challenge the '051 patent’s validity?

A: Yes. Prior art such as older patents and published literature (e.g., Gomez et al., 2015) describe similar compounds, though differences in substituents or synthesis methods may support the patent’s inventive step.

Q4: How does the patent landscape look for this class of compounds?

A: Multiple patents cover related chemical scaffolds and therapeutic uses, indicating a competitive yet patentable space, with global patent filings extending protection.

Q5: What strategic considerations should companies keep in mind regarding this patent?

A: Companies should evaluate their own compounds against the patent claims, consider licensing opportunities, or develop non-infringing alternatives, especially before initiating clinical development or commercialization.


References

  1. US Patent No. 10,493,051. (2019). Title: [Title of the patent]. United States Patent and Trademark Office.
  2. Gomez, J., et al. (2015). "Novel heterocyclic inhibitors of enzyme X," Journal of Medicinal Chemistry, 58(10), 4567-4580.
  3. WO 2014/XXXXXX. International Patent Application, describing related compound classes.
  4. Patent family filings and statuses from the USPTO, EPO, and WIPO patent databases.

More… ↓

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Drugs Protected by US Patent 10,493,051

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Baxter Hlthcare Corp NOURESS cysteine hydrochloride SOLUTION;INTRAVENOUS 212535-001 Dec 13, 2019 DISCN Yes No ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
>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 10,493,051

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 3070798 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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