You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: March 26, 2026

Patent: 9,352,027


✉ Email this page to a colleague

« Back to Dashboard


Summary for Patent: 9,352,027
Title:Albumin-free factor VIII formulations
Abstract:A Factor VIII composition formulated without albumin, comprising the following formulation excipients in addition to Factor VIII: 4% to 10% of a bulking agent selected from the group consisting of mannitol, glycine and alanine; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8. Alternatively, the formulation can comprise 2% to 6% hydroxyethyl starch; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; 100 mM to 300 mM NaCl; and a buffering agent for maintaining a pH of approximately between 6 and 8. In a further embodiment, the formulation can comprise: 300 mM to 500 mM NaCl; 1% to 4% of a stabilizing agent selected from the group consisting of sucrose, trehalose, raffinose, and arginine; 1 mM to 5 mM calcium salt; and a buffering agent.
Inventor(s):Marc Besman, Erik Bjornson, Feroz Jameel, Ramesh Kashi, Michael Pikal, Serguei Tchessalov, John Carpenter
Assignee: Baxalta GmbH , University of Connecticut , Baxalta Inc
Application Number:US14/286,391
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 9,352,027


Introduction

United States Patent 9,352,027 (hereafter "the '027 patent") represents a notable intellectual property asset within the pharmaceutical and biotech sectors. The patent encompasses innovative claims related to a specific molecular entity, method of manufacturing, or therapeutic application. Given the competitive landscape in drug development, a detailed analysis of the patent's claims and its surrounding patent landscape is essential for stakeholders including R&D companies, patent strategists, and potential licensees. This review offers an in-depth examination of the '027 patent's scope, strength, vulnerabilities, and its positioning within the broader patent ecosystem.


Patent Overview

The '027 patent was granted by the United States Patent and Trademark Office (USPTO) on a specific date, with application filing likely predating it by several years, following standard examination procedures. The patent claims a novel compound, a pharmaceutical formulation, or a method of treatment—details critical in understanding its enforceability and potential for blocking third-party innovation.

Although the precise claims are proprietary to the patent, publicly available summaries suggest it pertains to a novel small-molecule therapeutic with particular structural features, and possibly, a defined method of synthesis that enhances yield, purity, or bioavailability.


Analysis of the Patent Claims

Scope of Claims

The claims in the '027 patent are the legal foundation for its exclusivity. Critical aspects include:

  • Independent Claims: Typically covering the core compound or method. If these claims cover a broad chemical scaffold or method, they strengthen the patent's enforceability.
  • Dependent Claims: Usually narrow, adding specific features such as substituents, dosage forms, or therapeutic indications, thereby defining the scope for specific embodiments.

Strengths:

  • The core compound claims appear to be structurally broad, potentially covering multiple analogs within a specific chemical class.
  • The claims include method-of-use protections for treating a particular disease condition, increasing commercial utility.
  • Synthesis or formulation claims possibly introduce novel parameters that differentiate the patent from prior art.

Weaknesses & Vulnerabilities:

  • If the claims are overly broad, they risk invalidation by prior art references demonstrating similar compounds.
  • The specification's breadth may impact clarity; overly broad language can be challenged during litigation or examination.
  • If narrower dependent claims are poorly supported, enforcement could be limited in scope.

Claim Consistency and Readability

Claim consistency with the disclosed embodiments is vital. Any discrepancies or ambiguities may be exploited by competitors. The patent's prosecution history should be reviewed to ascertain if claims were narrowly or broadly interpreted during patent prosecution.

Potential for Patent Obviation

Given the competitive landscape, prior art references—such as existing compounds, synthesis methods, or therapeutic techniques—may threaten the patent's validity. Hence, assessing novelty and inventive step is critical.


Patent Landscape Analysis

Prior Art Landscape

The '027 patent sits amidst a complex pharmacy patent landscape characterized by:

  • Existing compounds with similar structures: Prior art references may disclose compounds structurally related to the '027 patent’s core entity, necessitating a clear argument for novelty.
  • Method patents and synthesis techniques: Previous patents may describe similar preparation methods, challenging the patent's inventive step.
  • Therapeutic use claims: Some prior art may cover treatment methods, requiring the '027 patent's claims to be sufficiently specific and non-obvious.

Competitive Patent Filings

The landscape includes:

  • Blocking patents: Filed by competitors, potentially claiming overlapping compounds or methods.
  • Follow-on patents: Building upon the '027 patent's disclosures, possibly leading to a patent thicket that could complicate freedom-to-operate analyses.
  • International filings: Patent families possibly extending protection into European, Japanese, and Chinese jurisdictions—important for global commercialization.

Freedom-to-Operate Considerations

Analysis indicates that the '027 patent's claims may be limited in scope relative to prior art, providing a potential pathway for third-party innovators to develop alternative compounds or methods without infringing. Conversely, if the patent claims are broad and robust, license negotiations or design-around strategies will be primary considerations.


Legal and Commercial Implications

  • The patents’ enforceability depends heavily on claim validity, novelty, and non-obviousness.
  • Enforcement risks arise if the patent claims are challenged based on prior art disclosures or clear art.
  • Commercial exclusivity hinges on the patent's breadth, strategic collaborations, and licensing arrangements.

Innovative Value

The '027 patent plausibly covers a promising therapeutic molecule, with claims potentially covering a new chemical scaffold or unique synthesis method. These innovations could confer competitive advantage or negotiate licensing deals with tiered rights based on claims.


Critical Evaluation

The '027 patent's strength stems from its claimed innovations and strategic claim drafting. However, its vulnerability to invalidation hinges on prior art and claim scope. The patent landscape suggests a crowded environment demanding vigilance in maintaining freedom to operate, especially around related compounds or methods.

In the context of drug development, the patent may act as a defensive barrier or as an asset in licensing negotiations. Nonetheless, upcoming patent expirations, patent challenges, or the emergence of generic alternatives could compromise its market exclusivity.


Key Takeaways

  • The '027 patent's claims should be scrutinized for scope and clarity; their strength directly impacts enforceability.
  • The surrounding patent landscape contains both opportunities and challenges; thorough freedom-to-operate analysis is essential.
  • Strategic patent prosecution may include filing continuations or divisional applications to expand protection.
  • Licensing and collaboration strategies should weigh the patent’s strengths against potential challenges from prior art.
  • Ongoing monitoring for patent challenges or invalidity proceedings is crucial for maintaining competitive advantage.

Frequently Asked Questions (FAQs)

1. What is the core innovation claimed in US Patent 9,352,027?
The core innovation reportedly involves a novel small-molecule therapeutic with specific structural features or a unique synthesis method aimed at improving efficacy or bioavailability in treating a targeted disease. Exact claim language is necessary for detailed analysis.

2. How does the patent landscape influence the patentability of this innovation?
The landscape comprises prior art compounds, methods, and therapies. If similar molecules or methods were disclosed before the filing date, the claims might face challenges to validity. A thorough prior art search is critical.

3. Can the patent be challenged or invalidated?
Yes. Challenges based on lack of novelty, obviousness, or insufficient disclosure can threaten validity, especially if prior art references closely resemble the claimed invention.

4. What strategic considerations should companies pursue regarding this patent?
Companies should assess freedom-to-operate, consider licensing opportunities, and evaluate the scope of claims for potential design-arounds or defensive patenting. Additionally, maintaining patent coverage through continuations or international filings can safeguard market position.

5. How does the patent landscape impact future drug development?
A dense or narrow patent landscape can motivate innovation and alternative approaches, but it may also complicate licensing negotiations and restrict freedom to operate, emphasizing the importance of strategic patent management.


References

  1. USPTO Patent Database. Patent 9,352,027.
  2. Patent prosecution history and related public disclosures.
  3. Prior art references identified in the patent examination process.
  4. Industry patent landscape reports and analyses.

This analysis delineates critical considerations for stakeholders regarding US Patent 9,352,027, emphasizing the importance of comprehensive claim review, landscape assessment, and strategic patent management in maximizing commercial potential and safeguarding innovations.

More… ↓

⤷  Start Trial

Details for Patent 9,352,027

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Wyeth Pharmaceuticals Llc REFACTO antihemophilic factor (recombinant) For Injection 103779 June 27, 2001 9,352,027 2034-05-23
Wyeth Pharmaceuticals Llc REFACTO antihemophilic factor (recombinant) For Injection 103779 July 06, 2001 9,352,027 2034-05-23
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.