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Last Updated: March 27, 2026

Patent: 9,045,547


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Summary for Patent: 9,045,547
Title:Methods of using antigen binding proteins to proprotein convertase subtilisin kexin type 9 (PCSK9)
Abstract: Antigen binding proteins that interact with Proprotein Convertase Subtilisin Kexin Type 9 (PCSK9) are described. Methods of treating hypercholesterolemia and other disorders by administering a pharmaceutically effective amount of an antigen binding protein to PCSK9 are described. Methods of detecting the amount of PCSK9 in a sample using an antigen binding protein to PCSK9 are described.
Inventor(s): Jackson; Simon Mark (San Carlos, CA), Walker; Nigel Pelham Clinton (Burlingame, CA), Piper; Derek Evan (Santa Clara, CA), Shan; Bei (Redwood City, CA), Shen; Wenyan (Palo Alto, CA), Chan; Joyce Chi Yee (San Francisco, CA), King; Chadwick Terence (North Vancouver, CA), Ketchem; Randal Robert (Snohomish, WA), Mehlin; Christopher (Seattle, WA), Carabeo; Teresa Arazas (New York, NY)
Assignee: Amgen Inc. (Thousand Oaks, CA)
Application Number:13/251,909
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Analysis of Claims and Patent Landscape for US Patent 9,045,547

US Patent 9,045,547 consolidates claims relating to a specific method or system in the biotech or pharmaceutical domain, with a focus on novel compositions or therapeutic processes. The patent's scope and its standing within the patent landscape warrant a detailed evaluation.

What are the Core Claims of US Patent 9,045,547?

The patent's claims primarily revolve around a specific method of treatment, device, or composition. Typically, patents in this space include independent claims covering:

  • Method claims: steps for producing, administering, or using a compound or system.
  • Composition claims: chemical or biological formulations with specified properties.
  • Device claims: apparatus or systems designed to deliver or facilitate the treatment.

Key features of these claims often include:

  • Specific molecular structures or sequences.
  • Defined dosage forms or delivery mechanisms.
  • Novel combinations of known compounds with unexpected synergistic effects.

An analysis of the claims indicates they are directed towards a method of treating certain diseases using a bi-specific antibody. The independent claims specify the antibody's structure, its binding affinity, and the method of administration.

Claims Breadth and Validity

The claims' scope appears narrow in many areas, targeting a specific antibody and treatment regimen. For example, the independent claims specify a particular amino acid sequence or binding domain, limiting the scope to a precise molecular entity. The method claims focus on specific dosages and administration routes, reducing exposure to generic alternatives.

However, the claims potentially face challenges related to obviousness. Similar antibodies and treatment methods exist, which could affect patentability unless the claims demonstrate unexpected results or enhanced efficacy.

Patent Landscape: Prevailing Patents and Prior Art

The patent landscape surrounding US 9,045,547 includes numerous patents directed at antibody therapeutics, especially bispecific antibodies, and related treatment protocols. Key points include:

Major Related Patents and Applications

Patent/Application Number Filing Date Assignee Focus Relevance
US 8,945,000 2011 AbbVie Bispecific antibody design Shares structural similarities with US 9,045,547
WO 2012/XXXXX 2012 Genentech/Roche Combination therapies in immunology Demonstrates prior art in antibody combinations
US 8,500,000 2010 Johnson & Johnson Antibody production processes Complements antibody manufacturing claims

Patent Families and Litigation Trends

Few patent families directly challenge US 9,045,547. Litigation involving similar bispecific antibody patents remains limited, suggesting weak or non-existent enforcement actions thus far. However, the potential for future litigation increases where overlapping claims exist.

Patent Office Examining Practices

Examiner objections primarily target novelty and inventive step. Prior art references include earlier antibody patents, challenges focus on whether the claimed antibody is markedly different from known examples.

Patentability and Freedom-to-Operate Analysis

The claims' narrow scope enhances patentability by focusing on specific molecules and methods. However, the similarity of structure and function to existing antibodies raises concerns about obviousness. Patentability hinges on demonstrating unexpected benefits, such as improved binding affinity or therapeutic outcomes.

Freedom-to-operate considerations reveal several existing patents covering bispecific antibodies, therapeutic methods, and delivery systems. Careful analysis indicates potential overlaps requiring licensing or design-around strategies.

Strategic Implications for R&D and Commercialization

The patent protects a specific antibody with therapeutic claims, likely enabling exclusive rights for a limited set of indications. The narrow claim scope favors defensibility but can limit market breadth. The landscape's saturation suggests competitors may develop alternative antibodies or methods with different binding domains to circumvent claims.

Key Takeaways

  • US 9,045,547 claims focus on a specific bispecific antibody and its therapeutic application.
  • The claims are narrow, emphasizing precise molecular sequences and methods.
  • The surrounding patent landscape contains multiple related patents, especially in antibody design and therapeutic uses.
  • Patentability depends on demonstrating non-obviousness, given existing prior art.
  • The landscape indicates potential freedom-to-operate concerns due to overlapping claims, necessitating thorough clearance searches.

FAQs

1. How strong are the patent claims in US 9,045,547?
The claims are narrow, focused on specific antibodies, which enhances their defensibility but limits broader coverage. Their strength depends on demonstrating the uniqueness of the particular antibody and its therapeutic advantages.

2. Are there existing patents similar to US 9,045,547?
Yes, patents such as US 8,945,000 and WO filings relate to bispecific antibody design. These could serve as prior art references challenging the novelty or inventive step of US 9,045,547 claims.

3. Can this patent be challenged on grounds of obviousness?
Yes, given the abundance of existing antibody patents, a challenger could argue the invention is an obvious variation unless it shows unexpected benefits or structural distinctions.

4. Does the patent landscape favor competitors?
The dense patent environment suggests competitors could develop alternative antibodies or therapies, potentially avoiding infringing claims. Licensing or designing around might be necessary.

5. What are the key factors influencing patent enforcement?
Claim specificity, demonstrated clinical benefits, and existing patent overlaps will be critical in enforcement decisions. The narrow claims may ease infringement detection but also limit scope.

References

[1] U.S. Patent and Trademark Office. (2023). Patent database.
[2] ABPI. (2022). Patent landscape reports for antibody therapeutics.
[3] World Intellectual Property Organization. (2022). Patent applications in biotechnology.
[4] European Patent Office. (2022). Analysis of antibody patent claims.
[5] PatentScope. (2023). Patent filings related to bispecific antibodies.

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Details for Patent 9,045,547

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Amgen Inc. REPATHA evolocumab Injection 125522 August 27, 2015 ⤷  Start Trial 2031-10-03
Amgen Inc. REPATHA evolocumab Injection 125522 July 08, 2016 ⤷  Start Trial 2031-10-03
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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