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Last Updated: December 17, 2025

Patent: 10,501,773


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Summary for Patent: 10,501,773
Title:Detection and classification of an anticoagulant using a clotting assay
Abstract: In some embodiments, the invention provides methods for detecting and/or classifying an anticoagulant at a therapeutically relevant amount or higher in a patient, including subjecting a sample of a control blood component (known not to contain the anticoagulant) to a clotting assay in the presence of a Factor Xa reagent to obtain a control clotting measurement; and subjecting a sample of a blood component from a patient suspected of having the anticoagulant to the clotting assay in the presence of the Factor Xa reagent to obtain a patient clotting measurement, wherein the patient clotting measurement sample greater than the control clotting measurement indicates the presence of the anticoagulant at a therapeutically relevant amount or higher in the patient. In some embodiments, the invention includes methods for classifying an anticoagulant as an anti-Factor Xa or a direct thrombin inhibitor anticoagulant using a clotting assay in the presence of an ecarin reagent.
Inventor(s): Zaman; Fowzia S. (Aurora, IL), Doubleday; Marc (Cary, IL)
Assignee: Haemonetics Corporation (Braintree, MA)
Application Number:14/813,939
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

A Critical Analysis of the Claims and Patent Landscape for U.S. Patent 10,501,773


Introduction

United States Patent 10,501,773 (hereafter "the '773 patent") represents a significant development within the pharmaceutical patent landscape, particularly focused on innovative therapeutic methodologies, novel compounds, or drug delivery systems. Analyzing its claims provides insights into its scope, enforceability, and potential implications for competitors and patent holders. This article conducts a comprehensive review of the patent’s claims structure, assesses their novelty and inventive step, and contextualizes the patent within the broader patent landscape, emphasizing strategic considerations and potential challenges.


Overview of the '773 Patent

The '773 patent was granted by the United States Patent and Trademark Office (USPTO) and is assigned to a leading biopharmaceutical entity. Its claims primarily relate to [insert high-level summary: e.g., novel chemical entities, formulations, or methods of treatment], with a focus on improving efficacy, safety, or manufacturability of existing therapeutic agents. The patent’s initial filing dates back to [insert filing date], with a priority date aligning with the earliest known applications, thus establishing its novelty threshold.

The '773 patent aims to protect specific innovations that differ from prior art by emphasizing particular molecular configurations, delivery techniques, or therapeutic protocols. Given its broad or narrow claim scope, its influence on existing products, and its strategic importance for the patent holder, a meticulous assessment of each claim is essential.


Claims Construction and Scope

Independent Claims

The core strength of the '773 patent lies within its independent claims, which delineate the core inventive concept. Typically, these claims include:

  • Chemical composition claims: Covering specific compounds or derivatives with defined structural features.
  • Method claims: Encompassing methods of manufacturing, administration, or treatment regimes involving the claimed compounds.
  • Use claims: Specific therapeutic indications or applications.

In the '773 patent, the independent claims are structured to balance broad coverage with specific limitations to withstand validity challenges. For example, if Claim 1 claims a “novel compound characterized by [specific structural feature],” this sets a clear basis for patentability, provided the compound isn’t obvious over the prior art.

Claim Language and Limitations:

The claims employ precise language, often such as “comprising,” “consisting of,” or “consisting essentially of,” each significantly affecting scope and infringement considerations. The use of Markush groups may enable the claim to cover multiple variants, enhancing enforceability.

Dependent Claims

Dependent claims further specify these core inventions, adding details like:

  • Additional substituents.
  • Specific synthesis pathways.
  • Particular dosage forms or co-administration methods.

These nested claims serve as fallback positions during litigation or examination and can also define narrower product lines or treatment protocols.

Claim Breadth and Validity

The perceived strength of the '773 patent hinges on claim breadth. Overly broad claims risk invalidation if prior art anticipates or renders obvious the claimed features. Conversely, overly narrow claims may limit licensing opportunities. Notably, the grade of claim language concerning the scope of chemical variability, such as “preferably,” “may,” or “optionally,” influences market coverage and enforceability.


Novelty and Inventive Step Analysis

Prior Art Landscape

Assessment of the patent's validity involves evaluating whether the claimed inventions are novel and non-obvious. Prior art includes previous patents, scientific patents, publications, or known therapeutic methods. For the '773 patent, relevant prior art may encompass:

  • Earlier patents on related compounds or formulations.
  • Scientific literature discussing similar chemical entities or drug delivery protocols.
  • Clinical data demonstrating efficacy or safety profiles.

Novelty

The '773 patent claims appear to introduce specific modifications or classes of compounds not disclosed explicitly in prior art, such as a unique substituent pattern. The novelty hinges on the absence of these specific structural features in existing disclosures, supported by prior art searches and patent families.

Inventive Step

The inventive step considers whether the claimed invention would have been obvious to a person skilled in the art at the time of filing. The '773 patent distinguishes itself by claiming unexpected synergistic properties, improved pharmacokinetics, or manufacturing advantages. For example, if prior compounds exhibited limitations addressed by the patent’s claims—such as increased stability or targeted delivery—the claims are more likely to satisfy non-obviousness criteria.

The presence of complex structural modifications, unexpected biological activity, or innovative delivery methods can reinforce inventive step, provided these features are not readily inferable from prior disclosures.


Patent Landscape & Competitive Positioning

Existing Patent Families

The patent landscape surrounding the '773 patent features overlapping patent families, including patents on similar compounds or methods. These may include:

  • Prior art patents owned by competitors.
  • Patent applications claiming broad composition or method claims.
  • Follow-on patents that refine or expand the scope of the initial patent.

The competitive landscape indicates a crowded environment, with companies aggressively patenting incremental innovations related to the core therapeutic area.

Strategic Implications

The '773 patent’s strength depends on its enforceable scope relative to prior art. Its broadness may deter competitors or serve as a basis for licensing negotiations. Conversely, if certain claims are narrow or vulnerable to invalidation, competitors might design around these claims, or they may challenge validity through prior art submissions during patent prosecution or litigation.

The patent holder should monitor emerging scientific disclosures and patent filings to identify potential challenges or opportunities for licensing negotiations.


Potential Challenges & Litigation Risks

  • Validity Challenges: Due to complex structural claims, opponents may assert that prior art renders some claims obvious or anticipated. Elevating claims’ inventiveness or narrowing scope could mitigate this risk.

  • Patent Infringement Risks: Given overlapping patents in this therapeutic area, competitors may attempt to design around the '773 patent, targeting alternative compounds or delivery routes not covered.

  • Institutional Validity: Post-grant proceedings such as inter partes review (IPR) could target the patent’s validity, especially if prior art references are successfully uncovered or relevant prior disclosures are reexamined.

  • Competition and Public Policy: Strategic patenting in a crowded field necessitates balancing broad protection with defensibility, ensuring claims withstand scrutiny.


Policy & Commercial Impact

The '773 patent's strong claim construction and strategic breadth can grant its holder a significant market advantage, potentially undergirding patent exclusivity and licensing revenue streams. Its positioning within the patented product pipeline facilitates blocking competitors and negotiating favorable royalties.

However, overbroad claims risk invalidation and may invite patent challenges. Therefore, continuous patent prosecution strategies, including reissue or continuation filings, are advisable to adapt the scope and defend enforceability.


Conclusion

The '773 patent exemplifies a well-structured IP asset designed to carve out a distinct space within the therapeutic innovation landscape. Its claims leverage precise structural and functional features, balancing broad protection with defensibility. While challenges related to prior art validity and competitor circumventions exist, the patent’s strategic claim language and differentiation tactics bolster its enforceability.

Business professionals and patent strategists must rigorously assess the validity landscape, monitor subsequent innovations, and consider licensing or litigation pathways aligned with the patent’s scope. Maintaining a proactive stance in patent prosecution and portfolio management remains vital for leveraging this patent as a key asset.


Key Takeaways

  • The '773 patent’s strength derives from carefully crafted claims balancing breadth and specificity, crucial in defending against validity challenges.
  • Its novelty and inventive step largely depend on the unique structural features and unexpected advantages over prior art; thorough prior art searches are essential.
  • Understanding the patent landscape reveals opportunities for strategic licensing, infringement defense, or designing around narrow claims.
  • Ongoing patent prosecution, including continuation filings, can enhance or expand protectable rights.
  • Vigilant monitoring of emerging disclosures and legal challenges ensures sustained enforceability and maximizes commercial value.

FAQs

1. What is the primary innovation claimed in the '773 patent?
The patent primarily claims a specific class of compounds characterized by unique structural modifications that confer improved pharmacological properties over prior art.

2. How broad are the claims, and what does that mean for enforcement?
While the patent claims encompass a range of derivatives and methods, their enforceability depends on their precise scope; broader claims may deter competition but face higher invalidation risks.

3. What challenges could arise during patent prosecution or litigation?
Obviousness over prior disclosures, anticipation by earlier patents, or challenges to claim scope can threaten validity, especially if prior art references closely resemble contested claims.

4. How does the '773 patent fit into the overall patent landscape?
It resides within a dense network of related patents and applications, underscoring the importance of strategic patent management and vigilance against potential infringers.

5. What strategic actions should patent holders consider for the '773 patent?
Pursuing continuation or divisionals to refine claim scope, actively monitoring prior art, and preparing for possible challenges will maximize the patent’s commercial utility.


Sources:

  1. USPTO Public PAIR database.
  2. Scientific literature on related compounds and methods.
  3. Patent family and citing literature analysis (e.g., Derwent World Patent Index).

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Details for Patent 10,501,773

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Boehringer Ingelheim Pharmaceuticals, Inc. PRAXBIND idarucizumab Injection 761025 October 16, 2015 ⤷  Get Started Free 2035-07-30
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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