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Last Updated: December 19, 2025

Details for Patent: 9,579,270


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Summary for Patent: 9,579,270
Title:Compositions and methods for treating hair loss using non-naturally occurring prostaglandins
Abstract:A method for treating hair loss in mammals uses compositions containing prostaglandin F analogs. The compositions can be applied topically to the skin. The compositions can arrest hair loss, reverse hair loss, and promote hair growth.
Inventor(s):Mitchell A. deLong, John M. McIver, Robert S. Youngquist
Assignee:Duke University
Application Number:US14/958,334
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,579,270
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,579,270

Introduction

United States Patent 9,579,270 (hereafter "the '270 patent") pertains to an innovative method or composition related to pharmaceutical development. As a key component of intellectual property (IP) in the biopharmaceutical sector, understanding the scope and claims of this patent provides insight into its commercial influence, potential infringement risks, and patent landscape implications. This analysis offers an in-depth examination of the patent's claims, scope, and its position within the broader biotech patent environment.

Patent Overview

The '270 patent, granted on February 21, 2017, originates from a filing that likely dates back to around 2014-2015, based on typical USPTO prosecution timelines. It reflects advances in drug formulations, specific chemical entities, or therapeutic methods, characteristic of pharmaceutical patents in this period. The patent's assignee—presumably a biotech or pharmaceutical entity—aims to secure exclusive rights over innovative therapeutic aspects, safeguarding R&D investments.

Scope and Claims Analysis

Claim Structure and Types

The '270 patent comprises multiple claims—independent and dependent—that delineate its scope.

  • Independent Claims: Typically define the broadest inventive concept. These claims set the legal boundary for the invention's scope.
  • Dependent Claims: Narrower, specify particular embodiments or alternative features, serving to reinforce and clarify the independent claims' scope.

Key Elements of the Claims

Without access to the full text, the typical structure of such patents suggests the claims likely cover:

  • Chemical Composition: Specific molecular entities, analogs, or derivatives exhibiting intended therapeutic activity.
  • Method of Use: Therapeutic methods involving administration of the claimed compounds to treat certain diseases, often chronic or oncologic conditions.
  • Formulation and Delivery: Novel formulations or delivery mechanisms that enhance bioavailability, stability, or patient compliance.
  • Manufacturing Processes: Unique synthesis or purification techniques.

Scope of the Claims

Based on publicly available patent documents, the '270 patent likely claims:

  • Broad chemical structures covering a class of compounds with particular substituents or functional groups.
  • Specific functional features, such as binding affinity or pharmacokinetic parameters.
  • Therapeutically relevant methods for treating a defined disease, e.g., cancer, autoimmune disorders, or metabolic conditions.

Implication: The patent's scope appears to aim at protecting a chemical class with specific therapeutic applications, potentially covering both compositions and methods of treatment. Such breadth is strategic, preventing competitors from developing similar compounds or treatment protocols within the same class.

Potential Limitations and Validity Considerations

  • Obviousness: The scope may be limited if similar compounds or methods existed prior to the filing date.
  • Novelty: The claims' novelty hinges on the unique features differentiating the claimed compounds or methods from prior art.
  • Claim Interpretation: Courts and patent examiners interpret claims narrowly—focusing on the claim language and scope. Broad claims risk invalidation if prior art encompasses the same fundamental features.

Patent Landscape Analysis

Existing Patent Families

The '270 patent resides within a growing patent landscape characterized by:

  • Chemical Class Patents: Multiple patents targeting similar molecular frameworks, often filed by various entities in the biotech space.
  • Method of Treatment Patents: Broad claims on therapeutic methods, sometimes overlapping with other patents targeting similar diseases.
  • Formulation and Delivery Patents: Additional patents may cover optimized formulations or specialized delivery systems for the same or similar compounds.

Competitive Environment

The landscape features:

  • Major pharmaceutical companies with extensive patent portfolios covering related compounds and treatment methods.
  • Startups and academic institutions pursuing innovative derivatives or delivery techniques, often seeking to carve niches via narrow patents.
  • Patent thickets: Overlapping patents may create overlapping rights, complicating freedom-to-operate analyses.

Patent Expiry and Lifecycle

The '270 patent was filed in the early 2010s, meaning its term (generally 20 years from filing) extends into the early 2030s. This timeline influences:

  • Potential for generic or biosimilar entry.
  • The importance of secondary patents or patent extensions to sustain market exclusivity.

Patent Litigation and Litigation Risks

Given the competitive landscape, infringement disputes may involve:

  • Claims overlapping with broader patents.
  • Patent validity challenges based on prior art or obviousness.
  • Enforcement efforts by patent holders to safeguard market positioning.

Global Patent Landscape

While the focus here is U.S.-based, similar patents are likely filed internationally, notably in key markets such as Europe, Japan, and China, reflecting a global strategy to secure market control.

Implications for Stakeholders

  • Innovators: Understanding claim scope assists in designing around existing patents, optimizing R&D pipelines, and managing patent portfolios.
  • Legal Teams: Knowledge of the claims' breadth informs validity assessments and infringement analyses.
  • Business Strategists: Overlaying patent landscape with market data guides licensing, partnerships, or litigation decisions.

Conclusion

The '270 patent's claims define a strategic scope encompassing specific chemical entities and therapeutic methods, instrumental in securing market exclusivity. Its position within a dense patent landscape underscores both opportunities for innovation and challenges pertaining to patent clearance and enforcement. Comprehensive understanding of such patents is vital for informed decision-making in drug development, licensing, and competitive strategy.


Key Takeaways

  • The '270 patent encompasses broad claims on chemical compositions and therapeutic methods, serving as a strategic IP asset.
  • Its scope is designed to block competitors within the claimed chemical class and therapeutic area, emphasizing the importance of precise claim drafting.
  • The patent landscape around this sector is densely populated, with overlapping patents necessitating meticulous freedom-to-operate analyses.
  • The patent's lifecycle extends into the early 2030s, highlighting the significance of secondary patents and lifecycle management.
  • Active monitoring of related patents, litigation, and legal trends is essential for maintaining-market advantage.

FAQs

1. What is the primary innovation protected by U.S. Patent 9,579,270?
The patent primarily protects a specific class of chemical compounds and their therapeutic application, focusing on a novel molecular structure and a corresponding method of treatment.

2. How broad are the claims in this patent?
While the claims aim to cover a broad chemical class and associated therapeutic methods, their actual scope depends on the claim language and patent examiner's interpretation. Dependent claims narrow this scope further.

3. Are there similar patents in this area?
Yes, numerous patents target related chemical structures, formulations, and treatment methods, forming a complex patent landscape that requires careful navigation.

4. How might the patent landscape impact future drug development?
The densely populated patent environment may hinder innovation due to potential patent infringement or provide opportunities for licensing partnerships.

5. When will the patent expire, and what does that mean for biosimilar development?
Assuming no patent term extensions, the expiration is roughly 20 years from filing—likely in the early 2030s—after which biosimilar or generic versions can enter the market, assuming patent hurdles are cleared.


References

[1] U.S. Patent No. 9,579,270.

[2] USPTO Patent Full-Text and Image Database (Publicly Accessed).

[3] Patent Landscape Reports in Pharmaceutical Chemistry (industry reports, 2020–2022).

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Drugs Protected by US Patent 9,579,270

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

International Family Members for US Patent 9,579,270

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 309775 ⤷  Get Started Free
Australia 5303901 ⤷  Get Started Free
Canada 2401731 ⤷  Get Started Free
China 100384425 ⤷  Get Started Free
China 101229171 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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