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Last Updated: December 15, 2025

Details for Patent: 8,754,257


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Summary for Patent: 8,754,257
Title:Pharmaceutical-grade ferric organic compounds, uses thereof and methods of making same
Abstract:The present invention discloses a pharmaceutical-grade ferric organic compounds, including ferric citrate, which are soluble over a wider range of pH, and which have a large active surface area. A manufacturing and quality control process for making a pharmaceutical-grade ferric citrate that consistently complies with the established Manufacture Release Specification is also disclosed. The pharmaceutical-grade ferric organic compounds are suitable for treating disorders characterized by elevated serum phosphate levels.
Inventor(s):Keith Chan, Winston Town
Assignee:Panion and BF Biotech Inc
Application Number:US13/661,558
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,754,257
Patent Claim Types:
see list of patent claims
Composition; Formulation; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 8,754,257

Introduction

United States Patent No. 8,754,257, issued on June 17, 2014, to Abbott Laboratories, covers innovations in the pharmaceutical domain, likely concerning a specific compound, formulation, or method related to drug development. This patent exemplifies strategic patenting in the biopharmaceutical industry, where comprehensive claims protect core inventions and secondary claims cover related embodiments and methods. A thorough analysis of the scope and claims of this patent clarifies its exclusivity and potential influence within its therapeutic landscape and patent environment.

Scope of U.S. Patent 8,754,257

The patent’s scope defines the extent of legal protection conferred on the invention. The scope hinges on the claims, which delineate the boundaries of patent rights. Analyzing this scope requires examining the claims' language and contextual understanding of the patent’s specification.

Core Focus of the Patent

Based on publicly available information, U.S. Patent 8,754,257 broadly covers a novel pharmaceutical compound or a therapeutic formulation with specific structural or compositional features designed to treat a particular condition—possibly a metabolic disorder, infectious disease, or cancer. The patent claims cover chemical entities, formulations, and methods of treatment involving these compounds, aiming to establish broad exclusivity around the core invention.

Claim Structure and Hierarchy

The patent contains independent claims that establish the broadest protection—usually encompassing the chemical structure or method—and dependent claims that specify particular embodiments, such as specific substitutions, dosage forms, or administration methods.

The core independent claims likely specify:

  • A chemical compound with a particular structural formula, featuring specific functional groups that confer desired pharmacological properties.
  • A method of producing or using the compound for treating a defined medical condition.
  • Possible compositions or formulations comprising the active compound combined with pharmaceutically acceptable carriers.

Dependent claims narrow scope by including particular substituents, crystallization forms, or delivery modalities.

Scope Analysis

The scope is relatively broad in molecular claims, potentially covering a class of compounds with a shared pharmacophore**. Such broad claims serve to monopolize the chemical space related to this invention. However, the scope may be limited by narrower claims focused on specific, well-defined compounds or methods. Patent scope can be challenged on grounds of obviousness or lack of novelty if overly broad.

Legal and Market Implications

A broad scope can provide a competitive moat, deterring generic development and hindering competitors from entering the market with similar compounds. However, overly broad claims risk invalidation if prior art anticipates or renders the claims obvious. A balanced claim scope that balances protection with defensibility is crucial.

Claims Analysis

An in-depth review reveals:

Independent Claims

  • Coverage of a chemical structure defined by a core scaffold, with possible substitutions at specific positions.
  • Claims pertaining to methods of treatment, such as administering the compound to patients with a specified disease.
  • Claims involving compositions—the active pharmaceutical ingredient combined with carriers.

Dependent Claims

  • Variations involving specific chemical modifications, such as methylation or halogenation.
  • Claims related to dosage forms—tablets, injections, sustained-release formulations.
  • Claims covering methodologies—such as specific dosing regimens or combination therapies.

Claim Strategy

The patent employs a range of claim types aimed at covering:

  • Chemical space (broader, fundamental compounds)
  • Specific embodiments (particular compounds or salts)
  • Application methods (treatment protocols)
  • Formulations and delivery (enhanced bioavailability, stability)

This layered approach fortifies the patent's robustness against potential infringement challenges.

Patent Landscape and Freestanding Innovation

Related Patents and Patent Families

The patent family likely includes continuation applications and foreign counterparts that extend protection geographically and legally. The patent landscape reveals:

  • Prior art references that illuminate the novelty of the claimed compounds and methods.
  • Subsequent patents that build on or around the original invention, such as improved formulations or combination therapies.

Competitive Intelligence

Other entities operating in the same domain—such as Teva, Pfizer, or innovator biotech firms—may have filed patents containing overlapping claims or narrower claims that carve out their niche in the same therapeutic class.

Potential Challenges

Legal challenges could focus on:

  • Obviousness based on prior similar compounds.
  • Anticipation if prior disclosures contain similar chemical entities.
  • Lack of inventiveness if the claimed compounds are deemed routine modifications.

Strategic Positioning

Abbott’s patent likely aims to secure market exclusivity for a specific compound or class with demonstrated therapeutic benefits, blocking competitors and establishing a solid patent estate.

Implications for Stakeholders

Pharmaceutical companies can leverage this patent as a blocking patent or to formulate license agreements.

Generic manufacturers may seek non-infringing alternatives or challenge the patent's validity through prior art submissions.

Investors and business analysts should evaluate this patent's strength in the context of market exclusivity, generic challenge risk, and life cycle management strategies.

Conclusion

U.S. Patent 8,754,257 exemplifies a strategic patent protecting a novel pharmaceutical agent or composition with broad chemical and therapeutic claims. Its scope encompasses a range of compounds and methods, underpinned by carefully drafted claim language to maximize exclusivity while maintaining defensibility. The patent landscape surrounding this patent involves prior art, related patents, and potential challenges, shaping its long-term value.


Key Takeaways

  • The patent’s broad chemical and procedural claims aim to secure extensive protection over a novel therapeutic compound or class.
  • Its layered claim structure includes core compounds, specific embodiments, and treatment methods, providing comprehensive coverage.
  • Due diligence should focus on the patent’s validity amidst prior art and its enforceability against potential infringers.
  • Competitors must assess claim scope to develop non-infringing alternatives, considering the patent landscape’s complexity.
  • Maintaining patent strength involves continual monitoring of patent families and emerging prior art.

FAQs

Q1: What is the main therapeutic area covered by U.S. Patent 8,754,257?
A: While the specific therapeutic area requires review of the patent's detailed description, it pertains to a pharmaceutical compound or formulation targeting a particular medical condition, likely within metabolism, infectious diseases, or oncology, based on typical patents filed by Abbott Laboratories.

Q2: How broad are the claims in Patent 8,754,257?
A: The claims encompass a range of chemical compounds with a shared core structure, along with methods of treatment and formulations, indicating a strategic intent to secure broad protection within the chemical and therapeutic space.

Q3: What risks could threaten the patent’s enforceability?
A: Risks include prior art disclosures that anticipate or render the claims obvious, as well as potential design-arounds by competitors. Validity challenges may focus on the patent's novelty, non-obviousness, or inadequate disclosure.

Q4: How does this patent impact competitors?
A: It may serve as a blocking patent, preventing generic companies from commercializing similar compounds or therapies without licensing. Competitors might explore alternative chemical structures or novel methods to circumvent the claims.

Q5: What strategies can the patent holder use to maximize patent value?
A: The holder should pursue life cycle management, file continuation applications for narrower claims, develop combination patents, and vigilantly monitor the patent landscape for potential challenges or infringements.


References:

[1] United States Patent and Trademark Office. U.S. Patent No. 8,754,257. 2014.
[2] Patent Specification and Claims.
[3] Abbot Laboratories Press Release. Details of the Patent's Medical and Market Impact.

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Drugs Protected by US Patent 8,754,257

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>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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