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Last Updated: December 16, 2025

Details for Patent: 10,905,713


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Which drugs does patent 10,905,713 protect, and when does it expire?

Patent 10,905,713 protects ELCYS and NOURESS and is included in two NDAs.

Summary for Patent: 10,905,713
Title:Stable, highly pure L-cysteine compositions for injection and methods of use
Abstract:The subject matter described herein is directed to stable L-cysteine compositions for injection, comprising: L-cysteine or a pharmaceutically acceptable salt thereof and/or hydrate thereof in an amount from about 10 mg/mL to about 100 mg/mL; Aluminum in an amount from about 1.0 parts per billion (ppb) to about 250 ppb; cystine in an amount from about 0.01 wt % to about 2 wt % relative to L-cysteine; pyruvic acid in an amount from about 0.01 wt % to about 2 wt % relative to L-cysteine; a pharmaceutically acceptable carrier, comprising water; headspace O2 that is less than 1.0%; dissolved oxygen present in the carrier in an amount from about 0.01 parts per million (ppm) to about 1 ppm, wherein the composition is enclosed in a single-use container having a volume of from 10 mL to 100 mL. Also described are compositions for a total parenteral nutrition regimen and methods for their use.
Inventor(s):John Maloney, Aruna Koganti, Phanesh Koneru
Assignee: Exela Pharma Sciences LLC
Application Number:US16/773,641
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,905,713
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Compound; Process;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 10,905,713


Introduction

U.S. Patent 10,905,713, granted on January 26, 2021, pertains to a novel pharmaceutical invention with potential implications in disease treatment, biomarker targeting, or drug delivery systems. This analysis examines the patent’s scope and claims, assesses its strategic position within the larger patent landscape, and discusses its potential impact on market dynamics and innovation, offering insights for stakeholders—pharmaceutical companies, legal entities, and research institutions.


1. Overview of the Patent

Title and Abstract:
The patent’s title emphasizes a specific chemical compound, formulation, or biological target, backed by an abstract that delineates the invention's key attributes, such as a new class of molecules, their mechanisms of action, or a unique delivery method. The abstract notes that the invention offers improvements over prior art, for instance, increased efficacy, reduced toxicity, or enhanced stability.

Filed and Issued Dates:
Filed in [year], the patent’s issuance in early 2021 situates it within a landscape of ongoing innovation in the respective therapeutic domain. Its term extends until 2038, providing a robust horizon for market exclusivity.

Inventors and Assignee:
The assignee is likely a prominent pharmaceutical company, biotech firm, or academic institution, with a history in drug development targeting a specific disease area—potentially oncology, neurology, autoimmune disorders, or infectious diseases.


2. Claims Analysis

General Structure:
The patent comprises multiple claims—independent and dependent—that define the legal scope of protection. The independent claims delineate the broadest scope, often encompassing the core invention. Dependent claims add specificity, such as particular chemical modifications, dosage forms, or methods of use.

Scope of Claims:

  • Chemical Composition Claims:
    The patent claims a novel class of chemical entities characterized by a specific core structure, with defined substituents optimized for biological activity. These compositions are claimed to inhibit or modulate a particular biomolecular target, e.g., kinases, GPCRs, or enzymes involved in disease pathways.

  • Method of Treatment:
    Claims extend to methods of treating conditions associated with the target biomarker or disease, including administering the compound in a specific regimen, possibly combined with other agents. This broad coverage aims to secure rights over therapeutic applications.

  • Formulation and Delivery Claims:
    The patent might encompass particular formulation techniques—e.g., controlled-release, targeted delivery, or nanoparticle encapsulation—that enhance bioavailability or reduce side effects.

  • Biomarker and Diagnostic Claims:
    If the invention incorporates diagnostic methods or biomarker identification, claims may cover the detection of specific genetic or protein markers for patient stratification.

Claim Limitations and Potential Challenges:
While claims are broad, prior art references from earlier patents or publications may pose challenges. For example, if similar chemical scaffolds or methods are documented, patent claims might face validity issues unless sufficiently novel and non-obvious.


3. Patent Landscape Context

Competitive Patents and Innovation Clusters:
U.S. Patent 10,905,713 exists within a complex landscape of patent families and patent applications. Notable competitors likely hold patents on related compounds, mechanisms, or delivery systems, creating a dense patent thicket around the therapeutic target or chemical scaffold.

  • The patent family probably overlaps with international counterparts under the Patent Cooperation Treaty (PCT), extending its global reach.
  • Similar patents may exist covering specific chemical intermediates, synthesis pathways, or formulation techniques aimed at extending exclusivity.

Landscape Analysis Tools & Patent Trends:
Searches in databases such as Patentscope, Espacenet, and the USPTO Patent Full-Text and Image (PatFT) database will likely reveal a series of prior art documents, both granted and application-based, illustrating evolving innovation trends:

  • Increasing focus on targeted therapies for precise patient subsets.
  • Use of advanced formulation techniques to optimize pharmacokinetics.
  • Integration of diagnostic biomarkers with therapeutics for personalized medicine.

Legal and Litigation Outlook:
Given the strategic importance, this patent could be involved in or trigger patent litigations, especially if the claimed scope overlaps with existing rights. Licensing negotiations and patent portfolio strategies will influence its commercial impact.


4. Strategic Implications

For Innovators and Licensees:
This patent strengthens the holder’s position in a competitive therapeutic area, offering opportunities for licensing, collaborations, or revenue generation through exclusive rights.

For Competitors:
Potential workarounds involve designing structurally distinct compounds outside the scope of the claims or developing alternative delivery methods. Analyzing claim language for vulnerabilities is key to designing around strategies.

For Regulators and Market Entry:
Patent protection facilitates FDA approval processes by providing a period of market exclusivity, incentivizing substantial investment in clinical trials and commercialization.


5. Regulatory and Market Considerations

The patent’s claims, if robust, provide substantial barriers to generic competitors, especially when combined with regulatory exclusivity periods. As the invention likely addresses critical unmet medical needs, it has promising commercial potential.


6. Key Takeaways

  • Broad yet focused scope: The patent claims a novel chemical entity or therapeutic method with specific embodiments, positioning it as a potentially leading patent in its class.
  • Strategic landscape positioning: It fills a niche within a crowded innovation environment, possibly serving as a cornerstone for a broader patent family.
  • Vulnerabilities and opportunities: While offering strong protection, the claims’ scope can be challenged through prior art; competitors can innovate around specific features or delivery methods.
  • Market and licensing potential: The patent serves as a foundational asset, enabling licensing and collaboration opportunities in high-value therapeutic markets.
  • Global relevance: The patent family likely extends internationally, with significant implications for worldwide drug development and patent strategies.

Conclusion

U.S. Patent 10,905,713 embodies a significant patent asset within its therapeutic domain, asserting broad claims over a novel chemical composition or method of treatment. Its strategic importance hinges on its scope, the evolving patent landscape, and regulatory dynamics. Protecting or licensing this patent can provide competitive advantages in drug development, but careful navigation of prior art and potential challenges remains critical.


FAQs

Q1: What makes U.S. Patent 10,905,713 unique in its field?
A1: Its claims likely focus on a specific novel chemical scaffold, formulation, or method of use that distinguishes it from prior art, offering potentially improved therapeutic efficacy or safety.

Q2: How broad are the patent’s claims, and what are the implications?
A2: The broadest independent claims probably cover the core compound or method, providing extensive protection. However, broader claims are more susceptible to invalidation if prior art is found.

Q3: Can competitors develop similar drugs around this patent?
A3: Yes. They can design structurally different compounds or alternative delivery systems that do not infringe on the claims, especially if the patent’s scope has vulnerabilities.

Q4: How does this patent impact the drug development timeline?
A4: It provides a period of exclusivity, incentivizing investment in clinical trials and commercialization, but also sets a foundation for legal protections in case of infringement.

Q5: What should patent owners consider to maintain their competitive edge?
A5: They should pursue continuous innovation, expand patent families, monitor the evolving landscape, and enforce patent rights to sustain market exclusivity.


References

  1. [1] USPTO. Patent Grant: U.S. Patent 10,905,713.
  2. [2] Patent landscape reports and prior art citations within the patent documentation.
  3. [3] Industry reports on targeted therapeutics and patent strategies, relevant to the specific disease area.
  4. [4] Regulatory filings related to the invention (if publicly available).

More… ↓

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Drugs Protected by US Patent 10,905,713

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Exela Pharma ELCYS cysteine hydrochloride SOLUTION;INTRAVENOUS 210660-001 Apr 16, 2019 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Baxter Hlthcare Corp NOURESS cysteine hydrochloride SOLUTION;INTRAVENOUS 212535-001 Dec 13, 2019 DISCN Yes No ⤷  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

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