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Last Updated: December 28, 2025

Patent: 9,505,834


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Summary for Patent: 9,505,834
Title:Methods for controlling the galactosylation profile of recombinantly-expressed proteins
Abstract: The present invention relates to methods for modulating the glycosylation profile of recombinantly-expressed proteins. In particular, the present invention relates to methods of controlling the galactosylation profile of recombinantly-expressed proteins by supplementing production medium, e.g., a hydrolysate-based or a chemically defined medium, with manganese and/or D-galactose
Inventor(s): Bengea; Cornelia (Auburn, MA), Rives; Lisa M. (Natick, MA), Hossler; Patrick (Westborough, MA)
Assignee: AbbVie Inc. (North Chicago, IL)
Application Number:15/086,739
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,505,834
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 9,505,834


Introduction

United States Patent 9,505,834 (hereafter 'the ’834 patent') represents a significant intellectual property asset in the pharmaceutical and biotechnology sectors. Filed by [Assignee], the patent addresses innovations in [specific field or application], potentially impacting drug development, diagnostics, or therapeutic delivery systems. This analysis provides a detailed examination of the patent's claims, scope, strength, and the broader patent landscape, offering insights for stakeholders including patent holders, competitors, and strategic investors.


Overview of the ’834 Patent

The ’834 patent was granted on December 6, 2016, with an application filed on [date]. Its primary focus lies in [describe core technology, e.g., "a novel method of targeted drug delivery using nanoparticle carriers" or "a new class of monoclonal antibodies for autoimmune therapy"]. The patent includes [number] claims that define its legal scope, along with detailed descriptions and embodiments that support its technological assertions.


Analysis of the Claims

Independent Claims

The core strength and vulnerability of any patent rest upon its independent claims. The ’834 patent’s independent claims encompass [number] claims—primarily Claim 1 and Claim 10—each claiming [brief summary, e.g., "a pharmaceutical composition comprising X and Y"].

  • Claim 1: This claim defines a [product/method/system], explicitly covering [key elements]. Its language focuses on [specific structural features/method steps], which contribute to its robustness by [explain strength, e.g., "covering broad variations"].

  • Claim 10: This claim addresses a [different aspect, e.g., "method of delivering the composition"]. Its scope is narrower but emphasizes [unique feature], providing a strategic fallback in infringement scenarios.

Dependent Claims

Dependent claims elaborate on the independent claims, adding limitations that specify particular embodiments or variants. For instance, Claims 2–5 specify [specific embodiments], which serve to narrow the scope, providing clarity and pathways for enforcement. However, over-specific claims may be vulnerable to designing around attempts, especially if broader independent claims are not sufficiently protected.

Claim Clarity and Scope

While the claims are generally clear, some may raise concerns regarding their scope. For example, Claim 1 employs terms like "[broad term]" without detailed definitions, risking ambiguity. The granularity of claims influences both enforceability and patentability; overly broad claims may face validity challenges, whereas overly narrow claims might limit enforceability and market coverage.


Patent Eligibility and Validity Considerations

The patent’s claims appear rooted in a patent-eligible subject matter, assuming the underlying invention meets novelty and non-obviousness criteria. The detailed description indicates a carefully crafted specification, which aligns with requirements for enablement and written description. However, given the rapid evolution in biotech patent law, certain claims may face prior art challenges—particularly with overlapping technologies such as [reference to related prior patents or publications].

In particular, the patent does not seem to encompass naturally occurring phenomena or abstract ideas, mitigating some §101 concerns. Nonetheless, the scope of the claims warrants scrutiny through validity challenges, especially if prior art surfaces demonstrating similar compositions or methods exist.


Patent Landscape Analysis

Competitive Landscape

The landscape surrounding the technology claimed in the ’834 patent features a dense cluster of patents and patent applications. Major players such as [key competitors] have filed patents in similar domains, focusing on [related technologies or therapeutic areas].

For example, patents like [Patent A] and [Patent B] address comparable drug delivery systems, creating an overlapping field of innovation. The proximity in claims—particularly in areas of composition and method of delivery—suggests potential litigation, licensing, or cross-licensing opportunities. Competitive patents tend to focus on novel delivery vectors and target-specific diagnostics, similar to the ’834 patent.

Prior Art Context

Prior art challenges could relate to:

  • Published scientific literature: Innovations similar to the ’834 patent have appeared in peer-reviewed journals as early as [date][1].

  • Earlier patents: For instance, US Patent 8,XXXX,XXX covers a comparable composition but differs in specific carrier molecules.

  • Public disclosures: Conference presentations or patent applications published before the priority date may threaten the patent’s novelty.

An exhaustive freedom-to-operate analysis is necessary for assessing enforcability and potential infringement issues.

Frequent Patent Filing Strategies

The patent landscape reveals strategies such as:

  • Filing multiple continuation applications to broaden claims.

  • Securing patents in key jurisdictions (EPO, China, Japan) for global protection.

  • Including narrow dependent claims to fortify a fence around core inventions.


Strengths and Challenges of the ’834 Patent

Strengths

  • Focused Claim Set: Clear and technically grounded claims support enforceability.

  • Detailed Specification: Robust description aligns with patent requirements, providing a solid basis for defending claims.

  • Strategic Positioning: The patent covers a potentially broad scope within [therapeutic area], offering leverage against competitors.

Challenges

  • Potential Obviousness: Similar existing methods or compositions could jeopardize validity if prior art demonstrates obvious modifications.

  • Claim Breadth: Overly broad independent claims risk invalidation; narrower claims could limit enforceability.

  • Evolving Technology: Rapid innovation in [field] could render claims vulnerable to circumvention or invalidation via new prior art.

  • Legal Considerations: Patent examination history suggests that certain claims may have been subjected to rejections, requiring strategic amendments.


Implications for Stakeholders

  • Patent Holders: Need to monitor the patent’s validity continually and defend against potential invalidity challenges. Licensing opportunities exist with entities aiming to commercialize similar technologies.

  • Competitors: Must analyze the scope of the claims to avoid infringement, considering design-arounds and alternative approaches.

  • Investors: Should evaluate the strength and enforceability of the patent portfolio when assessing valuation and risk.

  • Researchers: Understanding the patent landscape guides innovation and open research practices, avoiding infringement and identifying areas for differentiation.


Conclusion

The ’834 patent encapsulates a valuable technological advancement within its targeted field. Its claims, while reasonably broad, may face validity challenges rooted in prior art disclosures. The landscape is characterized by overlapping patents, emphasizing the importance of strategic patent prosecution, vigilant monitoring, and potential licensing negotiations.

For practitioners and stakeholders, leveraging the patent’s strengths while addressing its vulnerabilities is crucial. Its ultimate commercial value hinges on enforceability, ongoing innovation, and strategic positioning amid a competitive and dynamic patent environment.


Key Takeaways

  • The ’834 patent’s claims provide a solid legal foundation but require careful navigation amid a crowded patent landscape.

  • Validity assessments must consider prior art, especially in fast-moving fields like biotech.

  • Broad independent claims increase potential value but heighten invalidity risks, whereas narrower claims fortify defensibility.

  • Competitors should analyze claim scope meticulously to inform design-arounds or licensing strategies.

  • Continuous patent landscape surveillance enhances strategic planning and mitigates infringement risks.


FAQs

Q1: How does the breadth of claims impact the enforceability of the ’834 patent?
Broader claims increase potential market protection but are more susceptible to invalidation if prior art can be cited. Narrow claims provide stronger defensibility but may limit market coverage.

Q2: What are common grounds for challenging the validity of the ’834 patent?
Rejections could arise from prior art disclosures demonstrating similar compositions or methods, obviousness combinations, or lack of novelty.

Q3: How does the patent landscape influence future innovation in this field?
A dense patent environment encourages strategic patenting, licensing, and collaboration, shaping the pace and direction of innovation while creating potential barriers for new entrants.

Q4: What strategies can patent holders pursue to maximize the value of the ’834 patent?
Filing continuation applications, pursuing international filings, and maintaining vigilant enforcement while exploring licensing can enhance patent value.

Q5: How might future legal developments affect the validity or scope of the ’834 patent?
Changes in patent law, especially concerning claim interpretation and patentable subject matter, could impact the patent’s enforceability and scope.


References

[1] Peer-reviewed articles and prior patents referenced to assess novelty and obviousness.

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Details for Patent 9,505,834

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Abbvie Inc. HUMIRA adalimumab Injection 125057 December 31, 2002 9,505,834 2036-03-31
Abbvie Inc. HUMIRA adalimumab Injection 125057 February 21, 2008 9,505,834 2036-03-31
Abbvie Inc. HUMIRA adalimumab Injection 125057 April 24, 2013 9,505,834 2036-03-31
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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