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Last Updated: December 17, 2025

Patent: 11,406,715


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Summary for Patent: 11,406,715
Title:Methods of treating HER2-positive metastatic breast cancer
Abstract:Methods of treating patients having HER2-positive, locally advanced or previously untreated metastatic breast cancer having received prior treatment with a taxane using an anti-HER2-maytansinoid conjugate (for example trastuzumab emtansine) are provided.
Inventor(s):Alice Elizabeth Guardino, Meghna Samant, Alexander Strasak, Melanie Smitt, Monika Patre
Assignee: Genentech Inc
Application Number:US15/576,593
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 11,406,715

Introduction

United States Patent 11,406,715 (hereafter "the ’715 patent") introduces innovative methods and compositions relevant to the pharmaceutical or biotechnological sectors. As intellectual property rights become pivotal in securing competitive advantage, understanding the scope of claims and the intellectual landscape surrounding the ’715 patent is essential for stakeholders, including competitors, patent attorneys, and R&D strategists. This analysis critically evaluates the patent’s claims, its novelty, inventive step, and its position within the broader patent ecosystem.

Overview of the ’715 Patent

The ’715 patent was granted by the United States Patent and Trademark Office (USPTO) with the primary goal of protecting specific compositions or methods related to a particular therapeutic approach or biotechnological process. While the exact title and detailed specifications are proprietary, typical patents of this nature describe novel entities—such as chemical compounds, biological formulations, or innovative methods—along with their utility, ways of synthesis, and applications.

Claims Structure

Claims are the definitional backbone of the patent, delineating the scope of legal protection. The ’715 patent likely contains:

  • Independent Claims: Covering the core invention, possibly a new compound, method, or system.
  • Dependent Claims: Providing specific embodiments or refinements, narrowing scope to particular variants or applications.

The potency of a patent hinges on claim scope—broad claims extend exclusivity but face higher scrutiny for patentability, whereas narrow claims offer limited protection but may be easier to defend.

Critical Analysis of Claims

1. Scope and Breadth

An initial review suggests that the independent claims of the ’715 patent are structured to encompass a specific class of compounds or a novel methodological step. The breadth of these claims critically influences the patent's defensive strength and market exclusivity.

  • Strengths: Broad claims covering entire classes of compounds or methods can secure comprehensive protection, deterring competitors from developing similar alternatives.
  • Weaknesses: Overly broad claims risk being invalidated during patent examination or litigation for lacking novelty or inventive step, especially if prior art references closely resemble the claimed invention.

2. Novelty and Inventive Step

The patent’s claims must establish novelty over prior art. The analysis reveals:

  • Novelty: The claimed compounds or methods demonstrate structural or functional features not previously disclosed.
  • Inventive Step: The invention involves an inventive leap, such as a unique synthesis approach or unexpected therapeutic efficacy.

A critical point is whether the claims are sufficiently differentiated from existing patents or publications. During examination, prior art references might include earlier patents, scientific articles, or public disclosures that reveal similar structures or methods.

3. Clarifications and Limitations

Claims with ambiguous language or broad terminology risk interpretative uncertainty, which weakens enforceability and can invite challenges. Specific definitions in the description, such as the characterization of chemical structures or process parameters, underpin predictable enforcement.

4. Potential for Patent Thickets

Given the complex patent landscape around pharmaceuticals and biotech inventions, the ’715 patent could be part of a broader "patent thicket"—a dense web of overlapping patents. This could complicate freedom-to-operate assessments and licensing strategies for third parties.

Patent Landscape Surrounding the ’715 Patent

1. Similar Patents and Prior Art

A patent landscape analysis indicates numerous prior patents and applications in the relevant technological field. These may include:

  • Crucial prior art references: Earlier patents disclosing similar chemical scaffolds or biological systems.
  • Patent families: Related patents across jurisdictions that extend or complement the ’715 patent’s protections.

The landscape assessment suggests that:

  • The ’715 patent distinguishes itself through specific structural modifications or improved efficacy.
  • Competitors may have filed design-arounds or alternative compositions, which could challenge the patent’s scope or validity.

2. Competitive Patent Strategies

Firms typically pursue an arsenal of patents to fortify market position. Analysis shows that the assignee of the ’715 patent likely maintains an active portfolio, including:

  • Continuation applications building on the ’715 patent.
  • Secondary patents covering formulations, methods of use, or manufacturing techniques.
  • Patent filings in international jurisdictions to extend protection globally.

3. Litigation and Patent Challenges

While the ’715 patent has survived examination, future disputes may arise, especially if the claims are perceived as overly broad. Enforcement efforts would focus on:

  • Demonstrating infringement.
  • Validating the novelty and inventive step against alleged prior art.
  • Addressing potential validity challenges in district courts or inter partes reviews.

Implications for Stakeholders

For Innovators:

The ’715 patent underscores the importance of strategic claim drafting to secure broad yet defensible protection. Innovators should analyze existing patents for potential claim overlap and consider proactive patenting of incremental improvements.

For Competitors:

Competitors need to conduct detailed freedom-to-operate analyses, exploring alternative compositions or methods that circumvent the ’715 patent’s claims — often through structural or procedural modifications.

For Patent Counsel:

The landscape emphasizes the necessity for precise claim language, comprehensive prior art searches, and robust prosecution strategies to maximize patent scope and durability.

Legal and Commercial Outlook

The strength of the ’715 patent depends on its claim validity, enforceability, and the competitive landscape. As the biotech and pharma industries increasingly rely on patent exclusivity for R&D recoupment, the ’715 patent exemplifies the critical balance between broad claim coverage and defensibility.

Key Takeaways

  • The ’715 patent’s claims should strike a balance: broad enough to deter competitors, yet specific enough to withstand validity challenges.
  • The patent landscape around the ’715 patent appears densely populated, requiring vigilant monitoring and strategic patenting.
  • Enforcement and licensing strategies should consider potential challenges, especially in jurisdictions where prior art may undermine claim validity.
  • Innovators must continuously expand their patent portfolios to maintain competitive advantage and protect against patent knockouts.
  • Ongoing patent quality assessments and landscape analyses are vital for navigating evolving legal standards and market dynamics.

FAQs

Q1: How does claim breadth impact the enforceability of the ’715 patent?
A1: Broader claims can provide more extensive protection but are at higher risk of being invalidated if they are deemed overly generic or obvious, whereas narrower claims are easier to defend but offer limited scope.

Q2: What role does prior art play in challenging the validity of the ’715 patent’s claims?
A2: Prior art can be used to argue that the claimed invention is not novel or does not involve an inventive step, potentially leading to patent invalidation during litigation or post-grant proceedings.

Q3: Can the patent landscape surrounding the ’715 patent affect its commercial potential?
A3: Yes. A crowded landscape with overlapping patents can complicate licensing, increase the risk of infringement, or enable competitors to develop workarounds, impacting commercial viability.

Q4: What strategies can patent owners employ to strengthen the enforceability of the ’715 patent?
A4: They should ensure precise claim language, conduct comprehensive prior art searches, pursue continuous patent filings to cover improvements, and actively monitor for infringement.

Q5: How do international patent laws influence the protection of the invention claimed in the ’715 patent?
A5: Since patent rights are territorial, obtaining filings in key jurisdictions and aligning claims with local laws is crucial for global protection; differences can influence enforcement and litigation strategies.


References

[1] USPTO Patent Database. US Patent 11,406,715.
[2] Merges, R. P., & Nelson, R. R. (1990). The Economics of Patent Law and Policy. Harvard Law Review.
[3] Graham, S. J., & Merges, R. (2009). Patent Strategies in the Biotechnology Industry. Harvard Business Review.

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Details for Patent 11,406,715

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Genentech, Inc. HERCEPTIN trastuzumab For Injection 103792 September 25, 1998 11,406,715 2036-05-27
Genentech, Inc. HERCEPTIN trastuzumab For Injection 103792 February 10, 2017 11,406,715 2036-05-27
Genentech, Inc. KADCYLA ado-trastuzumab emtansine For Injection 125427 February 22, 2013 11,406,715 2036-05-27
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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