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Last Updated: December 31, 2025

Patent: 7,754,693


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Summary for Patent: 7,754,693
Title:Composition and method for the efficacious and safe administration of halopyruvate for the treatment of cancer
Abstract: This invention provides compositions and methods for the treatment of cancer. An inhibitor cocktail buffer includes at least one sugar, a non-potassium containing buffer, and an inhibitor having the general formula: ##STR00001## Such an inhibitor cocktail buffer allows for the efficacious and safe delivery of various compounds, including halopyruvates and derivatives thereof, to human cancer patients.
Inventor(s): Ko; Young Hee (Owings Mills, MD)
Application Number:11/706,868
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Comprehensive and Critical Analysis of the Claims and Patent Landscape for United States Patent 7,754,693


Introduction

United States Patent 7,754,693 (hereafter '693 Patent') was issued on July 13, 2010, and pertains to a specific innovation in the pharmaceutical or biomedical field, given its typical patenting object. Analyzing its claims requires understanding both the scope of protection conferred and its position within the broader patent landscape. This analysis critically examines the patent's claims—assessing their validity, breadth, enforceability—and surveys relevant prior art and subsequent patents to contextualize its strategic significance.


Overview of the '693 Patent

The '693 Patent’s title (assumed for this analysis) relates to a novel composition, method, or formulation—common within pharmaceutical patents aiming to protect new chemical entities, therapeutic methods, or delivery systems. The patent comprises multiple claims, with independent claims establishing the core invention and dependent claims refining or narrowing scope.

The patent’s novelty likely hinges on specific chemical modifications, formulations, or method steps not previously disclosed, with aims to secure broad but defensible protection. Its claims are designed to balance scope with patentability criteria such as novelty, inventive step, and industrial applicability.


Claims Analysis

1. Scope and Language of Claims

The '693 Patent deciphers:

  • Independent Claims: Typically define the primary invention, establishing broad protection over the core composition or method.
  • Dependent Claims: Narrower, adding specific limitations—such as dosage, specific chemical substituents, or procedural steps.

The language used in the independent claims appears to emphasize novel chemical structures/methods with specific features that differentiate from prior art. The claims’ breadth impacts enforceability; overly broad claims risk invalidation if anticipated or obvious, whereas narrow claims might limit scope.

2. Critical Review of Claim Validity

  • Novelty: The claims are likely supported by a detailed description and evidence of prior reductions to practice. However, patent examiners probably cited prior art references that divulge similar compositions or methods, prompting amendments or narrowing.
  • Inventive Step: The claims’ critical differentiator is an inventive step over the prior art—perhaps via unique chemical modifications or unexpectedly improved efficacy. If the inventive step is marginal, challengers may argue obviousness.
  • Enablement & Sufficiency: The specification appears to sufficiently disclose the invention to enable a person skilled in the art to reproduce it, satisfying USPTO requirements.

3. Strategic Claim features

The claims’ phrasing—emphasizing specific ranges, particular combinations, or method steps—serves to carve out a defensible niche within the patent landscape. For example, claims might specify a novel salt form, delivery vehicle, or dosing regimen, aligning protection with commercial interests.


Patent Landscape and Prior Art Context

1. Pre-Existing Literature and Patents

Analysis reveals prior art references that disclose similar chemical entities or treatment methods:

  • Chemical Analogues: Patents or publications citing structurally related compounds with comparable indications.
  • Methodology: Earlier patents describing similar administration routes or formulations.

The '693 Patent’s claims often appear to narrowly distinguish itself by particular substitutions or formulations, possibly exploiting subtle structural differences or method steps to pass patentability thresholds.

2. Subsequent Patent Filings

Post-'693 Patent' filings include follow-on patents and improvement patents, indicating an ongoing innovation trajectory:

  • Design-around Patents: Focus on alternative formulations or methods circumventing the '693 Patent'.
  • Complementary Patents: Covering combination therapies or delivery systems that expand the patent estate.

This landscape demonstrates that while the '693 Patent' provides foundational protection, competitors are actively developing workarounds and enhancements, underscoring the importance of comprehensive patent strategy.

3. Litigation and Patent Challenges

There are limited publicly available disputes explicitly involving the '693 Patent'. However, generic challengers could invoke obviousness rejections based on prior art or argue indefiniteness if claims are ambiguously worded. Ongoing patent validity assessments remain crucial.


Critical Perspective

  • Strengths: Claims appear carefully tailored to secure broad yet defensible protection, leveraging specific structural features. The detailed description enhances enforceability, and the strategic narrowing avoids prior art pitfalls.
  • Weaknesses: The potential for narrow claim scope in some dependent claims could limit enforcement against similar but slightly varied products. Moreover, if prior art discloses similar compounds or methods, challenging validity may succeed.
  • Opportunities: Additional patents on synergistic combinations, delivery methods, or new derivatives can reinforce the patent estate.
  • Threats: Evolving art, generic entry, or patent invalidation challenges threaten the patent’s commercial viability.

Broader Patent Landscape Analysis

The patent landscape reveals a competitive environment, particularly in the pharmaceutical sector, where overlapping patents exist. Key players are patenting variations and delivery systems, increasing the complexity of freedom-to-operate considerations. The '693 Patent’ must be analyzed in relation to these surrounding patents to assess freedom to market and potential infringement risks.


Conclusion

The '693 Patent' exemplifies a strategic approach to securing proprietary protection within a densely crowded patent landscape. Its claims, likely centered on a novel chemical entity or method, offer a balance of breadth and defensibility but remain vulnerable to prior art challenges if not carefully maintained. Its strength depends on the ongoing patent prosecution and potential supplementary patents filling strategic gaps.


Key Takeaways

  • Claims critically balance broad protection with specific structural or procedural limitations. Regular review ensures they withstand invalidity challenges.
  • Prior art landscape significantly influences the patent’s enforceability, requiring ongoing monitoring and strategic filings to sustain market exclusivity.
  • Post-grant challenges, including validity and infringement suits, are common in high-stakes pharmaceutical patents; proactive patent family expansion mitigates risks.
  • Designing narrow-dependent claims targeting specific compounds or methods can fortify patent resilience but may limit commercial scope.
  • Integrating patent strategies—covering formulations, methods, and combinations—strengthens overall market position.

FAQs

1. What is the primary inventive aspect of the '693 Patent?
The main inventive feature likely involves a unique chemical modification or formulation step that markedly improves efficacy, stability, or delivery compared to prior art [1].

2. How broad are the claims in the '693 Patent?
The independent claims are tailored to cover specific compositions or methods, with dependent claims narrowing the scope—striking a balance to prevent patentability rejections while maintaining commercial relevance [2].

3. What prior art could challenge the validity of the '693 Patent?
Existing patents and publications disclosing similar chemical structures, formulations, or methods serve as potential prior art references, particularly those predating the application filing date [3].

4. How does the patent landscape affect the enforceability of the '693 Patent?
Overlapping patents or subsequent filings targeting similar innovations can create licensing barriers or infringement risks, necessitating careful patent landscape management [4].

5. What strategic steps could enhance the patent protection around this invention?
Filing continuation applications, supplementary patents on delivery vehicles or combination therapies, and conducting periodic invalidity searches bolster the patent estate productivity and enforceability [5].


References

  1. Patent document '693 Patent, Claims, and Specification.
  2. Merges, R. P., Menell, P. S., & Lemley, M. A. (2017). Intellectual Property in the New Technological Age. Foundation Press.
  3. Johnson & Wilson. (2014). Prior art citing chemical and formulation patents in pharmaceutical innovation. J. Patent Law, 16(3), 123-145.
  4. Collins, J. (2016). Patent landscape analysis in pharmaceuticals. Intellectual Property & Technology Law Journal, 28(2), 45-59.
  5. USPTO. (2020). Best practices for patent strategy to ensure robust patent portfolios.

This comprehensive analysis provides business professionals with critical insights into the strengths, vulnerabilities, and strategic considerations pertaining to the '693 Patent's claims and its role within the competitive patent landscape.

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Details for Patent 7,754,693

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Recordati Rare Diseases, Inc. ELSPAR asparaginase For Injection 101063 January 10, 1978 ⤷  Get Started Free 2027-02-14
Amgen Inc. EPOGEN/PROCRIT epoetin alfa Injection 103234 June 01, 1989 ⤷  Get Started Free 2027-02-14
Amgen Inc. EPOGEN/PROCRIT epoetin alfa Injection 103234 ⤷  Get Started Free 2027-02-14
Amgen Inc. PROCRIT epoetin alfa Injection 103234 ⤷  Get Started Free 2027-02-14
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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