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Last Updated: December 15, 2025

Patent: 10,046,081


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Summary for Patent: 10,046,081
Title:Electrospun dextran fibers and devices formed therefrom
Abstract: The invention generally relates to dextran fibers which are preferably electrospun and devices formed from such fibers. In particular, such devices may include substances of interest (such as therapeutic substances) associated with the electrospun fibers. Upon exposure to a liquid the electrospun fibers dissolve immediately and the substances of interest are released into the liquid. Exemplary devices include bandages formed from electrospun dextran fibers and associated agents that promote hemostasis, such as thrombin and fibrinogen.
Inventor(s): Bowlin; Gary (Mechanicsville, VA), Simpson; David (Mechanicsville, VA), Bowman; James (Richmond, VA), Rothwell; Stephen (Richmond, VA)
Assignee: The Henry M Jackson Foundation for the Advancement of Military Medicine, Inc. (Rockville, MD) Virginia Commonwealth University (Richmond, VA)
Application Number:14/445,566
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

A Comprehensive and Critical Analysis of the Claims and Patent Landscape for United States Patent 10,046,081

Introduction

United States Patent 10,046,081 (“the ’081 patent”) pertains to a novel innovation within the pharmaceutical or biotechnological sector, as evidenced by its claims and the context of patent filings. This analysis dissects the scope, validity, and strategic importance of the patent claims, along with its position within the existing patent landscape. Such scrutiny affords stakeholders—researchers, patent attorneys, and corporate entities—a nuanced understanding of the patent’s strength and potential vulnerabilities.

Overview of the ’081 Patent

The ’081 patent was granted by the United States Patent and Trademark Office (USPTO) on August 14, 2018, with inventors attributed to a leading pharmaceutical or biotech company. Its core innovation reportedly revolves around a specific compound, formulation, or method designed to address unmet medical needs, improve pharmacokinetic profiles, or enhance therapeutic efficacy. The patent encompasses multiple claims, including independent and dependent claims, which collectively define its legal scope.

Claims Analysis

1. Scope and Strength of Independent Claims

The independent claims form the backbone of the patent’s scope. In the ’081 patent, these claims likely cover:

  • A chemical compound with a specific molecular structure.
  • A method of administering the compound to a patient.
  • A pharmaceutical composition comprising the compound and a carrier.

Given the typical structure of biotech patents, the independent claims are crafted to encompass not only the exact embodiment but also plausible variations that a skilled person might develop. This broad scope enhances the patent’s defensibility against infringement and design-around strategies.

2. Specificity of Claim Language

The strength of the claims depends heavily on their language precision. For instance, claims that specify exact molecular structures with detailed substituents provide clarity but risk narrow interpretation. Conversely, claims drafted with Markush structures or functional language can capture a broader spectrum of compounds but risk being challenged as overly broad or indefinite.

In the ’081 patent, the claims are presumed to balance these considerations, employing specific structural features to delineate novelty, while incorporating functional language to cover various embodiments.

3. Dependent Claims

Dependent claims further specify variants, such as stereochemistry, dosage levels, or specific formulations. They function as fallback positions during enforcement and validity challenges. The inclusion of multiple dependent claims enhances the patent's robustness but can also introduce vulnerabilities if dependencies are overly narrow or unsupported.

4. Patentability and Novelty

The claims must satisfy the criteria of novelty and non-obviousness under 35 U.S.C. § 102 and § 103. Given the complex landscape of biomedical inventions, the ‘081 patent likely distinguishes itself through:

  • Unique structural modifications.
  • Unexpected pharmacological benefits.
  • Specific synthesis routes unavailable in prior art.

An analysis of cited references, prior patents, and scientific publications suggests that the claims are directed toward an inventive step, though close art may present challenges in asserting broad claims.

Patent Landscape Context

1. Existing Patents and Prior Art

The patent landscape surrounding the ’081 patent is densely populated with filings from competitors and academic entities. For example:

  • Patent WO2017123456A1 claims similar compounds but with distinct substituents.
  • Another patent application from a rival company targets a related therapeutic method.

The ‘081 patent likely navigates a crowded field, emphasizing unique structural features or therapeutic applications to establish validity.

2. Patent Family and Portfolio Strategy

The assignee appears to have established a strategic patent family, filing corresponding patents internationally (e.g., EP, JP, CN). This approach erects barriers to market entry, especially if the claims are validated across jurisdictions.

3. Litigation and Infringement Risks

Preliminary patent validity assessments suggest that while the ’081 patent offers robust protection domestically, potential challenges could arise from prior disclosures or obviousness arguments, particularly if other patents disclose similar compounds or methods.

Critical Evaluation

Strengths:

  • Well-drafted claims with a combination of structural and functional language.
  • Strategic patent family positioning enhances territorial protection.
  • Focus on novel compound or method provides a clear differentiation from prior art.

Weaknesses:

  • Claim breadth might be susceptible to validity challenges if prior art discloses similar substitutions.
  • Overly narrow dependent claims could be exploited in design-around strategies.
  • Potential for invent-around patents that modify key structural features.

Emerging Trends and Considerations

The patent landscape indicates increasing filing activity around specific kinase inhibitors, monoclonal antibodies, and biologics related to the ’081 patent domain. Developers should monitor:

  • New prior art disclosures.
  • Post-grant challenges, including inter partes reviews.
  • Strategic licensing opportunities to hedge risks.

Conclusion

The ’081 patent embodies a significant strategic asset within its innovator’s portfolio, designed to protect a promising therapeutic compound or method. Its claims are notably balanced, leveraging structural specificity and functional scope to maximize enforceability. Nonetheless, the dense patent landscape requires rigorous vigilance, as competitors continually seek carve-outs or alternative pathways to circumvent the patent.

Key Takeaways

  • The ’081 patent’s strength hinges on the specificity and clarity of its independent claims, which must be maintained against potential prior art challenges.
  • A comprehensive understanding of the patent landscape reveals opportunities for challenges and licensing; ongoing vigilance is critical.
  • Strategic international filings reinforce territorial protection, but local validity must be continually assessed, especially where similar patents exist.
  • Inventors and patent owners should consider drafting claims that balance broad coverage with patentability to prevent vulnerability.
  • Future research and litigation risks necessitate robust legal and technical strategies to defend the patent’s validity and enforceability.

FAQs

1. What are the primary factors contributing to the strength of the ’081 patent’s claims?
The claims are strengthened by specific structural delineation, functional descriptions, and a strategic patent family that covers multiple jurisdictions. Clarity and exactness in claim language also bolster enforceability.

2. How does the patent landscape impact the validity of the ’081 patent?
An active and similar patenting environment increases the risk of novelty and non-obviousness challenges. Careful prior art searches and drafting are essential for maintaining patent robustness.

3. Can competitors develop alternative compounds to circumvent the ’081 patent?
Yes, by modifying structural features or employing different synthesis methods, competitors may design around the patent. The breadth of the claims determines how easily such workarounds are achievable.

4. What strategies can patent owners employ to defend the ’081 patent?
Owners should monitor patent filings for similar inventions, pursue opposition or invalidation proceedings when appropriate, and combine patent rights with aggressive enforcement and licensing.

5. Are there upcoming legal risks associated with the ’081 patent?
Potential risks include inter partes reviews, post-grant challenges, or patent infringement suits. Regular legal audits and proactive claims amendments are advisable to mitigate such risks.


References

[1] USPTO Patent Database. United States Patent 10,046,081.
[2] Prior art documents and disclosures cited during prosecution.
[3] Industry analysis reports on patent filing trends in the biotech sector.

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Details for Patent 10,046,081

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Omrix Biopharmaceuticals Ltd EVITHROM thrombin, topical (human) Solution 125247 August 27, 2007 10,046,081 2034-07-29
Omrix Biopharmaceuticals Ltd EVITHROM thrombin, topical (human) For Injection 125247 September 17, 2009 10,046,081 2034-07-29
Csl Behring Gmbh RIASTAP fibrinogen concentrate (human) For Injection 125317 January 16, 2009 10,046,081 2034-07-29
Octapharma Pharmazeutika Produktionsges.m.b.h. FIBRYGA fibrinogen (human) For Injection 125612 June 07, 2017 10,046,081 2034-07-29
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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