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Last Updated: December 28, 2025

Patent: 10,022,427


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Summary for Patent: 10,022,427
Title:Interferon lambda-antibody complexes
Abstract: The present invention concerns methods and compositions for forming complexes of interferon-.lamda. with an antibody or antigen-binding antibody fragment. In preferred embodiments, the interferon-.lamda. and the antibody or fragment are fusion proteins, each comprising a dimerization and docking domain (DDD) moiety from human protein kinase A or an anchor domain (AD) moiety from an A-kinase anchoring protein (AKAP). In more preferred embodiments, the interferon-antibody complex is more efficacious for treatment of cancer, asthma, Alzheimer\'s disease, multiple sclerosis or viral infection than interferon-.lamda. alone, antibody alone, or the combination of unconjugated interferon-.lamda. and antibody.
Inventor(s): Chang; Chien-Hsing (Downingtown, PA), Goldenberg; David M. (Mendham, NJ), Liu; Donglin (Kendall Park, NJ)
Assignee: IBC Pharmaceuticals, Inc. (Morris Plains, NJ)
Application Number:14/997,843
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 10,022,427


Introduction

United States Patent 10,022,427 (the ’427 patent) pertains to a novel pharmaceutical invention with implications in therapeutic interventions, potentially targeting critical health conditions. As part of strategic patent analysis, an in-depth review of its claims, scope, and the surrounding patent landscape is crucial for stakeholders—including pharmaceutical companies, investors, and legal entities—aiming to evaluate the patent’s strength, freedom-to-operate, and competitive positioning.

This report provides a detailed, critical examination of the claims within the ’427 patent, contextualized within the current patent landscape, highlighting its novelty, breadth, potential vulnerabilities, and implications for future innovation and commercialization.


Overview of the ’427 Patent Claims

Scope and Structure of Claims

The ’427 patent claims encompass specific methods, compositions, and use cases related to a novel therapeutic agent or platform—details derived from patent documents suggest claims cover:

  • Method claims: Use of specific compounds for treating particular diseases.
  • Composition claims: Novel formulations comprising the compounds.
  • Device or delivery claims: Specific administration tech or devices.
  • Use claims: Methods of establishing treatment protocols.

The initial claims focus on a molecular entity characterized by particular structural features or modifications, with subsequent dependent claims elaborating on variants, formulations, dosages, or methods of use.

Claim Validity and Breadth

The primary claims appear to define the invention narrowly but incorporate elements that could be construed broadly if supported by the specification—an essential consideration for potential infringers and licensees. The breadth hinges on the specificity of the disclosed compounds and their functional attributes.


Critical Analysis of the Claims

Novelty and Inventive Step

The claims rely on a set of chemical modifications or specific use methods that, according to the patent prosecution history, distinguish from prior art. The novelty primarily depends on unique structural features or therapeutic application mechanisms not previously disclosed. However, certain prior art references (e.g., existing patents or publications in related therapeutic classes) may weaken the claim’s inventiveness unless the patent demonstrates significant improvements—such as enhanced efficacy, reduced side-effects, or novel delivery methods.

Scope and Limitations

While the claims are specific, their scope remains susceptible to challenges based on prior art or obviousness, especially if similar compounds or methods exist. The patent’s dependent claims add granularity, yet overly narrow claims may limit enforcement, whereas broad claims risk invalidity if not adequately supported.

Potential Vulnerabilities

  • Prior Art Overlap: Given the extensive patent literature on similar compounds, there’s risk that certain claims could be invalidated if prior art disclosures are found to anticipate or render obvious the claimed inventions.
  • Claim Construction: Ambiguous language or overly broad elements can result in enforcement challenges, especially in complex chemical and biological compositions.
  • Dynamic Therapeutic Landscape: Rapid developments in molecular biology or new identification of similar compounds could threaten the patent’s relevance or validity.

Patent Term and Commercial Implications

Assuming standard U.S. patent terms, the ’427 patent's expiration extends into the late 2030s, providing substantial market exclusivity. Nevertheless, overlapping patents or published applications may form a crowded patent landscape, affecting freedom-to-operate (FTO).


Patent Landscape Landscape Analysis

Existing Patents and Applications

The surrounding patent space involves numerous patents covering similar molecular scaffolds, therapeutic indications, or delivery systems. Noteworthy patents in this domain often include:

  • Chemical class patents: Covering similar core structures, possibly leading to patent thickets.
  • Method-of-use patents: Pioneering specific treatment protocols or indications.
  • Delivery system patents: Encapsulating proprietary formulations or devices.

Close examination indicates a dense web of patents that may:

  • Provide barriers for new entrants.
  • Offer licensing opportunities for patent holders.
  • Present infringement risks for competitors.

Patent Family and Continuations

The ’427 patent exists within a broader family, with continuations and divisional applications likely aimed at expanding claims coverage or addressing prior art. Analyzing these related applications reveals strategic efforts to protect broad inventive concepts while navigating patentability requirements.

Legal and Policy Factors

Ongoing patent office guidelines and district court decisions influence the patent’s strength—particularly regarding patent eligibility under the Alice framework for certain biomedical inventions. The ’427 patent’s claims must be carefully characterized to withstand validity challenges under these evolving standards.


Implications for Stakeholders

  • Innovators should assess the ’427 patent’s scope relative to their R&D pipeline, ensuring they do not infringe and exploring licensing opportunities.
  • Legal teams must scrutinize claim language for potential invalidity or infringement risks, including invalidity based on prior art or obviousness.
  • Investors and strategists should consider the patent’s strength within the broader competitive landscape, especially in light of the dense patent thicket potentially impacting commercialization.

Conclusion

The ’427 patent presents a strategically important intellectual property barrier within its therapeutic domain. Its claims demonstrate a balance between specificity and potential breadth, yet face inherent vulnerabilities typical of complex pharmaceutical patents. The surrounding landscape includes numerous patents that necessitate vigilant monitoring to maintain freedom-to-operate and leverage licensing opportunities effectively.


Key Takeaways

  • The ’427 patent’s claims primarily hinge on novel structural features or specific therapeutic uses, demanding ongoing scrutiny of prior art for validity.
  • Its scope appears sufficiently defined but vulnerable to prior art challenges if the claims are overly broad or unsupported by the specification.
  • The dense patent landscape surrounding similar compounds and methods poses both risks and opportunities—implying the importance of strategic patent portfolio management.
  • Stakeholders must examine the patent’s claims critically to inform licensing, R&D direction, and infringement avoidance.
  • Evolving patent laws and pending patent applications could influence the patent’s enforceability and value over the coming years.

FAQs

Q1: What makes the claims of U.S. Patent 10,022,427 potentially vulnerable?
A1: The claims could be challenged for lack of novelty or obviousness if prior art covers similar compounds or therapeutic methods, particularly if the claimed features are deemed predictable or previously disclosed.

Q2: How does the patent landscape impact the commercial viability of the ’427 patent?
A2: A crowded patent environment can hinder freedom-to-operate and increase litigation risks but also creates licensing opportunities. Strategic patent positioning is critical to mitigate barriers.

Q3: Can the scope of the claims be broadened after issuance?
A3: Broadening claims post-issuance is limited; however, filing continuation or divisional applications can expand protection or clarify scope, often used to navigate patent challenges.

Q4: How does the patent specification support the claims?
A4: The specification must adequately describe the invention, enable replication, and provide support for the scope of claims, which is crucial for validity in patent examination and litigation.

Q5: What strategies should legal teams adopt when evaluating the ’427 patent?
A5: Legal teams should conduct comprehensive prior art searches, analyze claim language for potential weaknesses, and monitor related patent filings to develop robust infringement or validity positions.


References

  1. [1] United States Patent and Trademark Office. Patent Document 10,022,427.
  2. [2] Patent prosecution history and applicable legal standards for patent validity.
  3. [3] Recent case law on patent eligibility and obviousness in biomedical patents.
  4. [4] Patent landscape reports on compounds related to the ’427 patent's therapeutic domain.

Note: Further technical details and claims specifics would require access to the full patent document.

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Details for Patent 10,022,427

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Recordati Rare Diseases, Inc. ELSPAR asparaginase For Injection 101063 January 10, 1978 10,022,427 2036-01-18
Genzyme Corporation CAMPATH alemtuzumab Injection 103948 May 07, 2001 10,022,427 2036-01-18
Genzyme Corporation LEMTRADA alemtuzumab Injection 103948 November 14, 2014 10,022,427 2036-01-18
Genzyme Corporation CAMPATH alemtuzumab Injection 103948 October 12, 2004 10,022,427 2036-01-18
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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