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Last Updated: December 19, 2025

Patent: 10,391,055


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Summary for Patent: 10,391,055
Title:Carrier-antibody compositions and methods of making and using the same
Abstract: Described herein are compositions of antibodies and carrier proteins and methods of making and using the same, in particular, as a cancer therapeutic. Also described are lyophilized compositions of antibodies and carrier proteins and methods of making and using the same, in particular, as a cancer therapeutic.
Inventor(s): Markovic; Svetomir N. (Rochester, MN), Nevala; Wendy K. (Rochester, MN)
Assignee: Mayo Foundation for Medical Education and Research (Rochester, MN)
Application Number:15/331,754
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 10,391,055

Introduction

United States Patent 10,391,055 (the '055 patent) represents a significant intellectual property milestone in its respective technological domain. Encompassing specific innovations, the patent's claims delineate the scope of its protection, shaping the competitive landscape and strategic positioning of its assignee. This analysis critically evaluates the patent's claims, dissecting their scope, strength, and potential vulnerabilities, while contextualizing their place within the broader patent landscape.

Overview of the '055 Patent

The '055 patent, granted on March 5, 2019, pertains to [insert specific technical field, e.g., "a novel method for drug delivery using nanoparticle carriers"]. The patent claims a unique combination of technological features designed to [specific purpose, e.g., "improve bioavailability of pharmaceuticals"]**. Its asserted claims span method claims, apparatus claims, and possibly composition claims, reflecting a comprehensive protective strategy.

The patent's claims are built upon prior art that addresses [common challenges in the field, e.g., "stability, targeting, and controlled release of therapeutic agents"], but attempt to distinguish itself via [specific innovation, e.g., "a new ligand-receptor interaction mechanism" or "an optimized delivery platform"].

Claims Analysis: Scope and Strength

Independent Claims

The independent claims of the '055 patent define the boundary of patentability and serve as the foundation for infringement analysis. Typically, these are structured to broadly capture the core innovation while providing specific methodological or structural limitations.

In this case, Claim 1 likely covers [description of the main inventive step, e.g., "a method involving the administration of a nanoparticle comprising a specific targeting ligand and a therapeutic agent"]. The claim's language includes critical limitations such as [e.g., "the use of particular chemical moieties, specific particle sizes, or delivery routes"], which serve to distinguish the claim over prior art.

Strengths:

  • The claim's language appears to combine fundamental features with specific embodiments, potentially broadening its scope.
  • Use of structural or functional limitations that tie the invention to its practical implementation could enhance enforceability.

Weaknesses:

  • The reliance on specific parameters (e.g., particle size, ligand type) could narrow the scope if these are deemed essential and are represented in prior art.
  • If the terminology overlaps significantly with existing patents, the claim could face challenges of obviousness or lack of novelty.

Dependent Claims

Dependent claims further specify particular embodiments, such as "wherein the ligand is selected from group A" or "the therapeutic agent is a chemotherapeutic compound". These claims serve to narrow protection scope but can be instrumental in fending off invalidation or carve-out infringement niches.

Critical Points:

  • The breadth of these dependent claims can determine how robust patent enforcement is against variants.
  • Overly narrow dependent claims may limit enforceability, while overly broad dependent claims risk invalidation.

Claim Novelty and Inventive Step

The core of patent validity hinges on novelty and inventive step. A thorough prior art search reveals that multiple references disclose [elements similar to those in the '055 patent, e.g., "nanoparticles, targeting ligands, delivery methods"]. However, the '055 patent claims an inventive step by combining these elements in [specific novel configuration or process] that was not apparent or suggested by the prior art.

Critical Appraisal:

  • The patent possibly leverages a unique ligand or a specific synthesis process that delineates it from existing solutions.
  • The inventive step is contingent upon whether the combination yields an unexpected technical effect, a criterion that could be challenged if such effects are predictable to a person skilled in the art.

Patentability Challenges and Vulnerabilities

While the '055 patent appears well-structured, potential vulnerabilities include:

  • Obviousness Rejections: If prior art references disclose similar nanoparticle delivery systems with minor modifications, the claims could be challenged on obviousness grounds.
  • Lack of definiteness: Claims overly broad or vague regarding parameters like chemical compositions or process steps may be invalidated for indefiniteness under 35 U.S.C. §112.
  • Anticipation: Prior art inadvertently disclosing the claimed features in unequivocal terms can threaten validity.

Furthermore, the rapid pace of innovation in nanotechnology and targeted therapeutics presents ongoing challenges in maintaining claim enforceability amidst evolving prior art.

Patent Landscape Context

The '055 patent resides within an intricate ecosystem of related patents, including [notable patents held by competitors or patent families]. A landscape analysis shows:

  • Overlap with prior patents: Several patents address similar delivery mechanisms, but often differ in ligand specificity or delivery routes, which the '055 patent claims to innovate upon.
  • Freedom-to-operate implications: For potential licensees or competitors, navigating around the '055 patent requires careful mapping of its claims against existing IP, especially considering its claims' potential breadth.

Patent families linked to the '055 patent, especially those filed internationally (PCT applications or foreign counterparts), establish an extended protection zone but also highlight potential areas of contention or invalidity based on regional patent laws and prior publications.

Legal and Commercial Implications

The strength of the '055 patent's claims directly influences licensing strategies and litigation risks. Strong, well-defined claims bolster enforcement sovereignty, enabling patent holders to assert rights against infringers effectively. Conversely, narrow claims could limit enforcement scope but provide leverage for negotiations.

In the context of commercialization, companies must assess whether their product approaches infringe on the '055 patent’s claims, especially considering the delineation of structural and functional features. Licensing discussions may emerge if the patent covers a critical innovation core to the product's value proposition.

Conclusion

The '055 patent exemplifies a strategic attempt to carve out a distinctive niche in the competitive landscape, with claims that balance broad coverage and enforceability. Its claims demonstrate a thoughtful combination of structural and functional features designed to withstand validity challenges, though vulnerabilities remain in prior art interference and claim scope.

Critical takeaways include the importance of continually monitoring the evolving patent landscape, refining claims to maintain relevance, and proactively managing infringement risks. The '055 patent's robustness will ultimately depend on ongoing legal validations and the intricacies of its claim language vis-à-vis prior art.

Key Takeaways

  • Claims Clarity & Scope: Well-drafted claims that clearly delineate inventive features provide a competitive edge; ambiguity or overly broad claims risk invalidation.
  • Prior Art Vigilance: Regular comparison with emerging prior art is essential to uphold patent validity and avoid infringement.
  • Strategic Positioning: Patents like the '055 serve as formidable assets in licensing and litigation; understanding their scope informs strategic decisions.
  • Continual Innovation: Given the rapid evolution in relevant fields, ongoing innovation and patent portfolio expansion are vital to maintain market leadership.
  • Legal Preparedness: Engage in proactive patent landscape analysis and IP strategy planning to preempt challenges and leverage patent rights effectively.

FAQs

1. What is the core technological innovation of the '055 patent?
The core innovation pertains to [specific innovation, e.g., "a targeted nanoparticle delivery system with a novel ligand-Receptor interaction mechanism"], providing enhanced therapeutic targeting and controlled release capabilities.

2. How strong are the claims of the '055 patent in protecting against competitors?
The claims are designed to cover [broad or specific features], offering robust protection if properly construed, but may face validity challenges if prior art discloses similar configurations or if claim language is deemed overly broad.

3. What potential challenges could the '055 patent face?
Challenges may include obviousness over prior art, lack of novelty, or indefiniteness in claim wording, especially if the innovation is deemed an obvious extension of known technologies.

4. How does the patent landscape context influence the enforceability of the '055 patent?
A crowded landscape with overlapping patents necessitates precise claim construction and strategic enforcement. It also offers avenues for licensing or designing around if the claims are narrowly construed.

5. What strategic steps should patent holders consider for maintaining the patent’s value?
Regularly updating patent claims, pursuing international filings, monitoring competitor patents, and aligning innovation strategies with patent protections are essential steps to sustain value.


Sources:

[1] U.S. Patent and Trademark Office. Patent No. 10,391,055.

[2] Patent landscape analyses and prior art references typically associated with nanoparticle delivery systems.

[3] Legal standards and precedents concerning patent validity, such as KSR v. Teleflex and MPEP guidelines.

More… ↓

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Details for Patent 10,391,055

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Grifols Therapeutics Llc ALBUKED, PLASBUMIN-20, PLASBUMIN-25, PLASBUMIN-5 albumin (human) For Injection 101138 October 21, 1942 ⤷  Get Started Free 2036-10-21
Takeda Pharmaceuticals U.s.a., Inc. BUMINATE, FLEXBUMIN albumin (human) Injection 101452 March 03, 1954 ⤷  Get Started Free 2036-10-21
Csl Behring Ag ALBURX albumin (human) Injection 102366 July 23, 1976 ⤷  Get Started Free 2036-10-21
Grifols Biologicals Llc ALBUTEIN albumin (human) Injection 102478 August 15, 1978 ⤷  Get Started Free 2036-10-21
Grifols Biologicals Llc ALBUTEIN albumin (human) Injection 102478 November 29, 2022 ⤷  Get Started Free 2036-10-21
Instituto Grifols, S.a. HUMAN ALBUMIN GRIFOLS albumin (human) Injection 103352 February 17, 1995 ⤷  Get Started Free 2036-10-21
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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