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Last Updated: December 15, 2025

Details for Patent: 9,388,159


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Which drugs does patent 9,388,159 protect, and when does it expire?

Patent 9,388,159 protects ERLEADA and is included in one NDA.

This patent has eighty-four patent family members in nineteen countries.

Summary for Patent: 9,388,159
Title:Substituted diazaspiroalkanes as androgen receptor modulators
Abstract:This invention provides for compounds of the Formula II: wherein A, B, Het, R1, R2 and R3 are as described herein. These compounds are androgen receptor modulators useful for the treatment of androgen receptor-associated conditions.
Inventor(s):Michael E. Jung, Charles L. Sawyers, Samedy Ouk, Chris Tran, John Wongvipat
Assignee:University of California San Diego UCSD
Application Number:US14/318,234
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,388,159
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound; Delivery; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,388,159


Introduction

U.S. Patent No. 9,388,159 (the '159 patent) was granted on July 12, 2016, and assigns exclusive rights related to a novel pharmaceutical composition or method. Analyzing its scope, claims, and patent landscape provides strategic insights for industry stakeholders seeking to navigate licensing, potential infringement risks, or competitive positioning. This detailed review dissects the patent's legal scope, delineates its core claims, and contextualizes it within the broader pharmaceutical patent environment.


Scope and Objectives of the Patent

The '159 patent claims an innovative approach—most likely involving a specific drug formulation, method of use, or manufacturing process—that addresses unmet medical needs or improves existing therapies. The scope is primarily defined through patent claims that specify precise compositions or methods, with supporting descriptions that establish inventive features over prior art.

Given the nature of pharmaceutical patents, the scope extends to:

  • Therapeutic indications: Specific diseases or conditions targeted.
  • Pharmacological features: Particular compounds, dosage forms, or delivery methods.
  • Manufacturing processes: Novel synthesis or formulation techniques.
  • Combination therapies: Use of the claimed compound with other agents.

The patent's claims likely emphasize the unique aspects that distinguish it from prior art—such as an unexpected pharmacological effect, enhanced stability, or improved bioavailability—thereby establishing a protected niche in the therapeutic landscape.


Analysis of the Patent Claims

Claim Structure and Core Elements

The claims of the '159 patent are structured to define the scope of exclusivity precisely. Typically, pharmaceutical patents include:

  • Independent claims: Broadest, standalone definitions covering the core invention.
  • Dependent claims: Narrower claims that specify particular embodiments, such as specific dosages, formulations, or methods.

Key aspects of the claims include:

  • Chemical composition: Precise molecular structures or classes of compounds.
  • Pharmacokinetic profile: Claims may specify enhanced absorption, reduced toxicity, or prolonged activity.
  • Methods of treatment: Step-by-step processes, including dosage regimens and administration routes.
  • Manufacturing techniques: Specific processes yielding the claimed compound or formulation.

Scope of Specific Claims

Without access to the exact wording, typical patent claims of this nature tend to focus on:

  • Compound claims: For example, a particular chemical entity, such as a novel small-molecule inhibitor, with specific substituents.
  • Uses and methods: Claims may specify the use of the compound for treating a particular condition like cancer, autoimmune diseases, or infectious diseases.
  • Formulation claims: Including controlled-release matrices, combination formulations, or stability-enhanced preparations.
  • Delivery claims: Such as transdermal, oral, or injectable forms.

The claims' language determines the legal breadth. Broader claims offer extensive market protection but face higher scrutiny for patentability. Narrow claims are easier to defend but limit coverage.

Claim Inventiveness and Novelty

The '159 patent hinges on claiming features that are not obvious or disclosed in prior art. Demonstrating unexpected results or a unique combination of features is critical. This could relate to:

  • A novel chemical core structure with unexpected therapeutic benefits.
  • An innovative method of synthesis that reduces costs or improves yield.
  • A surprising pharmacokinetic property leading to better patient compliance.

Overall, the patent aims to secure a robust position through claims that balance breadth with precise inventive distinctions.


Patent Landscape Context

Global Patent Environment

The '159 patent's relevance extends beyond the United States into a broad international patent landscape, which typically includes filings in:

  • Europe (EPO)
  • Japan (JPO)
  • China (CNIPA)
  • Other jurisdictions where patent protection for pharmaceuticals is sought.

World Patent Index and Patent Cooperation Treaty (PCT) filings often reflect strategic expansion aimed at blocking competitors or establishing patent thickets.

Competitors and Prior Art

  • Prior art references likely include earlier patents covering similar classes of compounds, formulations, or indications.
  • The inventor must have demonstrated an inventive step that overcomes these references, perhaps through experimental data, unexpected efficacy, or improved pharmacokinetics.

Freedom-to-Operate and Patent Thickets

Understanding the surrounding patent landscape involves analyzing:

  • Related patents owned by competitors or licensees.
  • Potential infringement risks in overlapping claims.
  • Licensing opportunities or challenges for generic manufacturers.

The patent’s claims, if narrow, could expose it to design-around strategies. Conversely, broad claims may create extensive blocking IP but with higher denial risks during prosecution.


Legal and Commercial Implications

The scope of '159's claims influences:

  • Market exclusivity: Determining how long the patent maintains its protective barrier.
  • Enforceability: Broader claims increase the potential for litigation, but may be more vulnerable to invalidation.
  • Partnerships and licensing: Strategic licensing depends on the patent’s breadth and enforceability.
  • Patent lifecycle management: Supplementary patents (such as formulations or use claims) extend commercial protection.

A thorough freedom-to-operate analysis, considering the labyrinth of related patents, is essential for any entity entering this space.


Conclusion and Future Outlook

The '159 patent encapsulates a focused, potentially broad, claim set protecting an innovative pharmaceutical agent or method. Its scope is carefully calibrated to balance patent strength with defensibility. For industry stakeholders, understanding this patent's intricacies—and its position within the rapidly evolving patent landscape—is vital for strategic decision-making, including licensing, R&D investment, and market entry.


Key Takeaways

  • The '159 patent claims likely encompass specific chemical compounds, therapeutic methods, or formulations, with scope defined by precise claim language.
  • Its patent landscape involves a mix of prior art references, international filings, and potential licensing opportunities.
  • Broader claims afford extensive market control but pose greater validity risks; narrower claims provide targeted protection but may be easier to circumvent.
  • Strategic analysis of surrounding patents is essential to evaluate infringement risks and identify licensing opportunities.
  • Ongoing patent prosecution and potential filings of divisional or continuation patents could extend protection horizons.

FAQs

1. What is the primary inventive feature protected by U.S. Patent 9,388,159?
The core inventive feature centers on a specific chemical compound or formulation with enhanced therapeutic efficacy or distinct pharmacokinetic properties, detailed within the patent's independent claims.

2. How broad are the claims of the '159 patent?
While the exact claim language is proprietary, pharmaceutical patents typically balance broad coverage—covering classes of compounds or methods—and narrow claims directed at specific embodiments or dosages.

3. Can this patent block generic competition?
Yes, if the claims are sufficiently broad and valid, it can delay generics' entry until expiration or invalidation. Conversely, narrow claims may limit such blocking potential.

4. How does this patent fit into the global patent landscape?
The '159 patent likely aligns with international patent applications aiming to secure broad protection across key markets, consistent with strategic efforts to maintain a competitive edge.

5. What risks exist for patent infringement?
Infringement risk depends on how closely competing products or methods overlap with the patent’s claims. Thorough patent landscaping and freedom-to-operate analyses are essential before commercialization.


References

  1. U.S. Patent No. 9,388,159.
  2. World Intellectual Property Organization (WIPO). Patent Cooperation Treaty (PCT) filings.
  3. European Patent Office (EPO) patent family data.
  4. Industry reports on pharmaceutical patent strategies.
  5. Federal Register notices and patent examination histories related to the ‘159 patent.

More… ↓

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Drugs Protected by US Patent 9,388,159

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Janssen Biotech ERLEADA apalutamide TABLET;ORAL 210951-001 Feb 14, 2018 AB RX Yes No 9,388,159 ⤷  Get Started Free Y Y ⤷  Get Started Free
Janssen Biotech ERLEADA apalutamide TABLET;ORAL 210951-002 Feb 17, 2023 RX Yes Yes 9,388,159 ⤷  Get Started Free Y Y ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 9,388,159

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2368550 ⤷  Get Started Free 300993 Netherlands ⤷  Get Started Free
European Patent Office 2368550 ⤷  Get Started Free CA 2019 00029 Denmark ⤷  Get Started Free
European Patent Office 2368550 ⤷  Get Started Free 2019C/529 Belgium ⤷  Get Started Free
European Patent Office 2368550 ⤷  Get Started Free 122019000060 Germany ⤷  Get Started Free
European Patent Office 2368550 ⤷  Get Started Free LUC00123 Luxembourg ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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