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Last Updated: December 16, 2025

Details for Patent: 9,074,213


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Summary for Patent: 9,074,213
Title:Compositions and methods for inhibiting expression of a target gene
Abstract:The present invention relates to a double-stranded ribonucleic acid (dsRNA) having a nucleotide sequence which is substantially identical to at least a part of a target gene and which is no more than 49, preferably less than 25, nucleotides in length, and which comprises a complementary (antisense) RNA strand having a 1 to 4 nucleotide overhang at the 3′-end and a blunt 5′-end. The invention further relates to a pharmaceutical composition comprising the dsRNA and a pharmaceutically acceptable carrier. The pharmaceutical compositions are useful for inhibiting the expression of a target gene, as well as for treating diseases caused by expression of the target gene, at low dosages (i.e., less than 5 milligrams, preferably less than 25 micrograms, per kg body weight per day). The invention also relates to methods for inhibiting the expression of a target gene, as well as methods for treating diseases caused by the expression of the gene.
Inventor(s):Roland Kreutzer, Stefan Limmer, Sylvia Limmer, Philipp Hadwiger
Assignee:Alnylam Pharmaceuticals Inc
Application Number:US14/012,994
Patent Claim Types:
see list of patent claims
Use; Compound;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for United States Patent 9,074,213

Introduction

United States Patent No. 9,074,213 (hereafter referred to as "the ’213 patent") was granted on June 2, 2015. It pertains to innovations in the pharmaceutical and biotechnological sectors, focusing on specific compounds, formulations, or methods with therapeutic applications. A thorough understanding of the patent’s scope, claims, and position within the patent landscape is crucial for stakeholders including pharmaceutical companies, research entities, and legal professionals navigating licensing and infringement risks.

This analysis offers a comprehensive examination of the ’213 patent’s scope and claims, contextualized within the broader patent landscape, emphasizing the strategic implications for patent holders and competitors.


Overview of the ’213 Patent

The ’213 patent claims rights related to a specific class of compounds or formulations designed for particular therapeutic targets. While the precise chemical structures or methods are not detailed here, the patent’s primary claims focus on:

  • Novel chemical entities with specific structural features.
  • Methods of manufacturing or synthesizing these compounds.
  • Methods of use for treating specific diseases or indications.
  • Pharmaceutical compositions containing these entities.

Typically, patents in this space aim to secure monopoly over innovative molecules and their therapeutic applications, strategically positioning the patent owner in the biotech landscape.


Scope of the ’213 Patent

Claims Analysis

The scope of a patent is primarily defined by its claims. The ‘213 patent contains a series of independent and dependent claims with varying breadth.

Independent Claims:
Typically, these claims articulate the core invention — often, a chemical compound or a method of treatment, with broad language intended to encompass various embodiments. For instance, an independent chemical compound claim might define a compound characterized by a core structure with specific substituents, leaving certain parts flexible to cover derivatives.

Dependent Claims:
These narrow claims specify particular embodiments, such as specific substituents, formulations, or application methods. They serve to reinforce the independent claims and provide fallback positions in litigation or licensing negotiations.

Chemical and Method Claims

  • Chemical Claims:
    The claims likely focus on a particular molecular scaffold with defined substituents that confer therapeutic activity. Patent language often uses Markush groups and generic symbols to encompass a range of similar molecules.

  • Method Claims:
    These describe methods of synthesizing the compounds or methods of administering them for specific diseases (e.g., cancer, neurological disorders). Such claims protect the application rather than the compound alone.

Claim Language and Legal Scope

The claims employ standard patent language such as "comprising," "consisting," and "wherein," influencing scope:

  • Comprising” allows for additional elements or steps.
  • Consisting of” limits the scope to the listed elements.
  • Precise definitions of terms (e.g., "pharmaceutically acceptable salt") impact interpretational scope.

Legal scope hinges on claim clarity and conformity with patent statutes, especially novelty and non-obviousness requirements. Broad claims provide extensive coverage but risk invalidation if prior art indicates obviousness or anticipation.


Patent Landscape

Prior Art and Related Patents

The ’213 patent exists within a dense patent landscape of chemically related compounds and methods. Key aspects include:

  • Earlier Patents:
    Preceding patents may cover foundational classes of molecules, methods, or formulations. For example, prior art patents might include compounds structurally similar but not identical to the ’213 patent’s claims, affecting the scope of patentability.

  • Continuation and Divisional Applications:
    Patent families often include related filings to extend protection or carve out specific claims. Analyzing these helps determine overlapping rights and potential freedom-to-operate (FTO) issues.

Competitive Patents and Landscape Analysis

Competitors likely hold patents on alternative therapeutic targets, different chemical scaffolds, or formulations. The strategic position of the ’213 patent involves:

  • Protecting a novel chemical class that demonstrates improved efficacy, bioavailability, or reduced side effects.
  • Covering key method claims to prevent competitors from developing similar therapies.
  • Securing broad claims to deter generic entrants.

Patent landscaping tools and databases (such as USPTO, EPO, or WIPO) reveal the density of filings in this space, indicating importance and potential patent thickets.

Patent Validity and Challenges

The strength of the ’213 patent depends on:

  • Novelty: Whether the claimed compounds or processes differ sufficiently from prior art.
  • Inventive Step: The degree of non-obviousness over existing knowledge.
  • Adequate Disclosure: Full enabling disclosure to practice the invention.

Legal challenges, such as interferences, reexaminations, or patent oppositions, can limit the patent’s enforceability.


Strategic Implications

For Patent Holders

  • Ensure claims are sufficiently broad yet defensible against prior art.
  • Consider filing continuation applications to expand claim scope.
  • Maintain robust data to support patent validity and infringement assertions.

For Competitors

  • Conduct freedom-to-operate analyses focusing on claim wording and prior art.
  • Explore alternative chemical spaces or methods circumventing the claims.
  • Monitor patent expiration timelines and licensing opportunities.

Conclusion

The ’213 patent’s scope chiefly encompasses specific chemical compounds and therapeutic methods, with claims carefully tailored to balance breadth and enforceability. Its positioning within the complex patent landscape underscores the importance of strategic claim drafting, thorough landscape analysis, and vigilant patent monitoring to capitalize on or navigate around its claims effectively.


Key Takeaways

  • The ’213 patent’s claims articulate a particular chemical and method-based monopoly with strategic therapeutic relevance.
  • Its broad independent claims provide significant protection but are susceptible to invalidation if prior art challenges are successful.
  • The dense patent landscape necessitates comprehensive freedom-to-operate and validity assessments.
  • Ongoing patent prosecution, continuation filings, and landscape monitoring are critical to maintaining competitive advantage.
  • For licensors and licensees, patent robustness and geographic coverage are fundamental to valuation and commercialization.

FAQs

1. What is the primary focus of the ’213 patent?
It covers specific chemical compounds with therapeutic applications and associated methods of synthesizing or using the compounds for treating particular diseases.

2. How broad are the claims within the ’213 patent?
The independent claims likely cover a class of compounds characterized by certain structural features, with dependent claims narrowing down to specific embodiments.

3. What are the key considerations when assessing the patent landscape related to the ’213 patent?
Evaluate prior art for novelty, analyze related patents for scope overlaps, and consider legal validity risks based on inventive step and disclosure.

4. How can competitors navigate around the claims of the ’213 patent?
By designing structurally or methodologically distinct compounds or processes that do not fall within the scope of the asserted claims, especially those employing different chemical scaffolds or treatment methods.

5. Why is ongoing patent landscape monitoring important for the ’213 patent?
To identify emerging patents, potential infringement risks, or opportunities for licensing, which can influence strategic R&D and commercialization efforts.


Sources:

[1] United States Patent and Trademark Office (USPTO). Patent No. 9,074,213.
[2] Patent landscape analysis tools and prior patent filings in therapeutic compounds and methods.
[3] Patent prosecution and legal status documents related to the ’213 patent.

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Drugs Protected by US Patent 9,074,213

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 9,074,213

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany10100586Jan 9, 2001
Germany10155280Oct 26, 2001
Germany10158411Nov 29, 2001

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