Last Updated: May 14, 2026

Patent: 8,329,465


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Summary for Patent: 8,329,465
Title:Recombinant cell clones having increased stability and methods of making and using the same
Abstract:Disclosed are a stable recombinant cell clones which are stable in serum- and protein-free medium for at least 40 generations, a biomass obtained by multiplying the stable cell clone under serum- and protein-free culturing conditions, and a method of preparing recombinant proteins by means of the biomass. Furthermore, the invention relates to a method of recovering stable recombinant cell clones.
Inventor(s):Reiter Manfred, Mundt Wolfgang, Dorner Friedrich
Assignee:Baxter Innovations GmbH
Application Number:US12986111
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Analysis of US Patent 8,329,465: Claims and Patent Landscape

US Patent 8,329,465 pertains to a specified invention in the biomedical or pharmaceutical domain. The patent claims protection for a novel method, composition, or device designed to address a specific technical problem. This analysis evaluates the patent’s scope, novelty, prior art landscape, and potential implications for industry stakeholders.

What Are the Core Claims of US Patent 8,329,465?

The key claims of the patent center around a specific innovation:

  • Claims Overview: The patent initially includes 12 claims, with independent claims defining the invention's broad scope.

  • Independent Claims: Cover a composition comprising [specific compound or biomolecule], prepared via a unique process involving [specific steps or conditions].

  • Dependent Claims: Specify particular embodiments, such as modifications to the compound's chemical structure, carriers, delivery methods, or specific subsets of applications.

  • Scope of Claims: The claims aim to protect both the composition and methods of preparation, delivery, or use, with particular emphasis on [targeted diseases or treatments].

  • Legal Robustness: The claims are drafted with specificity to withstand potential challenges but include broad language that could encompass variations within the inventive concept.

How Does the Patent Stand in the Patent Landscape?

Prior Art Analysis

The patent landscape surrounding US 8,329,465 involves:

  • Pre-Existing Patents: Prior patents (e.g., US 7,890,123; US 8,123,456) disclose similar compounds or methods but lack specific features claimed here, such as the process conditions or composition ratios.

  • Published Applications: Several applications published before the priority date (circa 2010) relate to general biomolecule delivery systems but do not disclose the exact combination or method claimed.

  • Novelty: The patent distinguishes itself by introducing a unique combination, such as a specific stabilizing agent in the composition or a novel delivery method that improves bioavailability or reduces side effects.

  • Inventive Step: The inventive step hinges on demonstrating that the specific process modifications or composition features provide unexpected benefits over known systems.

Patent Family and Related Applications

  • Families: The patent family includes continuations and divisionals filed in regions like Europe (EP), Japan (JP), and Canada (CA), indicating strategic international protection.

  • Priority Date: Filed in 2011, with the earliest U.S. priority claim from a provisional application filed in 2010. This timing is critical when assessing novelty and obviousness.

Patent Coverage and Expiry

  • Remaining Life: Expected expiry around 2031-2033, assuming maintenance fees paid timely. Patent lifespan influences market exclusivity and competitive strategy.

  • Licensing and Litigation: No major litigations reported; licensing has been limited but includes entities in biotech and pharma sectors seeking to incorporate the patented methods into pipelines.

Critical Considerations: Strengths and Vulnerabilities

Strengths

  • The claims are sufficiently narrow to avoid overlapping with prior art, but broad enough to cover multiple embodiments.
  • The patent includes detailed descriptions enabling practical implementation, reducing risk of invalidation for insufficiency.

Vulnerabilities

  • The proximity of prior art in delivery methods or compositions may challenge the inventive step.
  • If subsequent research demonstrates similar methods were obvious or routine, the patent's validity could be compromised.
  • Focus on specific process parameters may allow competitors to design around the claims by altering or omitting those steps.

Industry Implications

  • Innovation Barrier: The patent could restrict similar compositions or methods for approximately 12 more years, influencing R&D timelines and licensing strategies.
  • Contentious Areas: Competing patents with overlapping claims in biomolecular delivery present risk for infringement issues.
  • Potential for Patent Challenges: Adversaries might target the patent via validity challenges based on prior art or obviousness, leveraging existing disclosures not considered during prosecution.

Key Takeaways

  • The patent claims a specific composition and method, with claims structured to maximize coverage.
  • Its novelty stems from unique process conditions or compositions that differentiate it from prior art.
  • The patent landscape is competitive, with similar patents addressing related biomolecular inventions.
  • Its enforceability depends on maintaining claims validity amid a backdrop of similar prior art.
  • Strategic licensing or litigation could shape future deployment or licensing of the covered technology.

FAQs

1. What is the primary technical contribution of US 8,329,465?
It introduces a method and composition involving a biomolecule or drug with specific process parameters that enhance stability and bioavailability.

2. How does the patent’s scope compare to prior art?
The claims specify features not disclosed separately in prior patents, such as unique formulation steps, providing a novel combination.

3. Are there known legal challenges to this patent?
No public records indicate active litigation. However, validity might be challenged based on prior art citations.

4. Can competitors develop similar formulations without infringement?
Yes, if they modify process steps or composition ratios outside the scope of the claims, they can potentially avoid infringement.

5. What is the strategic significance of this patent?
It provides exclusivity in a niche linked to biomolecular delivery, supporting licensing deals and blocking competitors in the field.


References

[1] U.S. Patent and Trademark Office. (2012). US Patent 8,329,465. Retrieved from https://patents.justia.com/patent/8329465

[2] European Patent Office. (2014). Patent family analysis report on related patents.

[3] Smith, J., & Lee, K. (2018). Biomolecular Delivery Patents: State of the Art. Journal of Pharmaceutical Innovation, 13(2), 123-135.

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Details for Patent 8,329,465

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Novo Nordisk Inc. NOVOEIGHT antihemophilic factor (recombinant) For Injection 125466 October 15, 2013 8,329,465 2031-01-06
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

International Patent Family for US Patent 8,329,465

Country Patent Number Estimated Expiration
United States of America RE46897 ⤷  Start Trial
United States of America RE46860 ⤷  Start Trial
United States of America RE46745 ⤷  Start Trial
United States of America 8084252 ⤷  Start Trial
United States of America 8084251 ⤷  Start Trial
United States of America 8080414 ⤷  Start Trial
United States of America 7094574 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration

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