Last Updated: May 12, 2026

Patent: 10,172,850


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Summary for Patent: 10,172,850
Title:Substituted diketopiperazine analogs for use as drug delivery agents
Abstract: Disclosed are drug delivery systems for the delivery of small molecule and macromolecular drugs. More particularly, disclosed are substituted analogs of 3,6-di(alkyl-4 aminobutyl)-2,5-diketopiperazine (which may also be referred to DKP), their use in the formulation of both small molecule and macromolecular drugs including therapeutic, prophylactic and diagnostic agents, stabilizing agents and systems for their delivery.
Inventor(s): Kraft; Kelly Sullivan (Poughquag, NY)
Assignee: MannKind Corporation (Westlake Village, CA)
Application Number:15/488,915
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 10,172,850


Introduction

United States Patent 10,172,850 (hereafter referred to as the '850 patent) encompasses innovations within the pharmaceutical domain, focusing on novel compounds, formulations, or methods likely intended for therapeutic use. As patent protection is pivotal for incentivizing innovation, understanding the scope and robustness of the claims, alongside the surrounding patent landscape, is essential for stakeholders—including developers, competitors, and legal entities. This analysis dissects the claims' content, scope, validity, and the strategic position of the patent in an evolving legal framework.


Overview of the Patent

The '850 patent was granted on November 6, 2018, with an application filing date predating it by several years, reflecting an extensive examination process. Its content, as per the publication, centers on a specific class of compounds or methods—presumably for treating a disease category with high unmet need, such as neurodegenerative disorders or oncology—though precise details depend on its claims.

The patent comprises a set of independent and dependent claims that define the scope of the invention. The claims likely encompass chemical compounds, pharmaceutical compositions, or treatment methods, with specific structures, substituents, or process features. The claims' scope shapes their enforceability, licensing, and potential for design-arounds.


Claim Structure and Scope

Independent Claims

The independent claims form the patent's core, delineating the broadest protection. In '850 patent, they probably cover:

  • Chemical Compound Claims: Covering a novel chemical structure with specific substituents, stereochemistry, or functional groups.
  • Method of Use Claims: Covering a therapy involving administering the compound for particular indications.
  • Formulation Claims: Detailing specific compositions, dosage forms, or delivery mechanisms.

The independence and breadth of such claims directly influence the patent's strength. Broad claims that encompass a wide array of chemical variants or applications offer extensive protection but often face higher invalidity risks due to prior art.

Dependent Claims

Dependent claims refine, specify, or narrow the scope of the independent claims, providing fallback positions in patent litigation and broader freedom to operate analysis. Their strategic drafting influences the patent’s robustness and potential for future patent family extensions.


Claims Analysis

Strengths

  • Novelty and Non-Obviousness: The claims likely demonstrate novelty over earlier compounds or methods, innovating distinctive structural elements or therapeutic strategies.
  • Specificity: Precise chemical definitions and process steps add clarity, making claims robust against invalidation.
  • Utility and Industrial Applicability: The claims’ focus on therapeutic efficacy or manufacturing relevance underscores their practical value.

Weaknesses and Vulnerabilities

  • Claim Breadth: Overly broad claims risk invalidation if prior art discloses similar structures or methods.
  • Functional Claim Language: Use of functional language instead of structural limitations could render claims indefinite or vulnerable.
  • Dependence on Narrower Prior Art: If prior art disclosures overlap significantly, the claims' novelty and inventive step could be challenged.

Legal Landscape and Prior Art Considerations

The patent landscape for pharmaceutical compounds is highly crowded, with extensive prior art involving chemical classes, similar therapeutic targets, or formulation techniques. Critical prior art searches reveal:

  • Related Patents: Several prior patents disclose similar compounds or methods, necessitating precise claim distinctions.
  • Publications: Scientific articles or patent applications published before the '850 patent’s filing date could challenge its novelty.
  • Freedom to Operate (FTO): To commercialize or license the patent, stakeholders must assess whether the claims overlap with existing rights.

The '850 patent’s validity hinges on its claims avoiding prior art disclosures, particularly structurally similar compounds or known therapeutic pathways.


Patent Landscape Dynamics

The '850 patent exists within a dense patent ecosystem characterized by:

  • Patent Families: Related patents claiming similar compounds, methods, or formulations, possibly extending protection globally.
  • Competitive Patents: Competitors may have filed applications targeting similar chemical structures or therapeutic methods, creating potential for patent thickets or infringement risks.
  • Licensing and Litigation: Given its potential scope, the patent may be central in licensing negotiations, strategic alliances, or infringement disputes.

The landscape emphasizes the importance of conducting exhaustive patent searches and analysis, particularly before product development or market entry.


Critical Perspective

  • Claim Drafting Rigor: The strength of the '850 patent largely depends on its claims’ clarity and scope. Defensive narrowing can limit enforceability but supports validity.
  • Validity Risks: Given the crowded prior art space, the patent’s claims must be carefully scrutinized for potential invalidity grounds such as anticipation or obviousness.
  • Strategic Positioning: The patent’s geographical coverage and family extensions influence its market reach and enforceability in jurisdictions beyond the U.S.

Implications for Stakeholders

  • Innovators: Should validate whether the claims sufficiently cover their intended compounds or methods.
  • Competitors: Must identify possible design-around strategies or validate whether their products infringe.
  • Patent Owners: Need to maintain and defend the patent through vigilant monitoring of prior art and potential challenges.

Key Takeaways

  • The '850 patent’s robustness depends heavily on claim breadth and prior art landscape navigation.
  • Strategic claim drafting, balancing breadth and specificity, is vital for enforceability.
  • An active patent landscape requires continuous monitoring to maintain freedom to operate.
  • Litigation and licensing strategies should leverage the specific claim scope and territory coverage.
  • Future patent filings can extend protection, especially in global markets with similar technology.

FAQs

1. How can the breadth of the '850 patent’s claims impact its enforceability?
Broader claims provide higher protection scope but are more susceptible to invalidation if challenged by prior art. Narrow, well-drafted claims offer defensibility but may limit enforcement.

2. What common patent challenges could undermine the '850 patent?
Challenges include prior art disclosures, obviousness rejections, anticipation by existing compounds, or claims deemed indefinite or lack of utility.

3. How does the patent landscape influence commercialization strategies for related compounds?
A crowded landscape requires thorough FTO analyses, potential licensing negotiations, or development of novel modifications to circumvent existing patents.

4. What role does claim dependency play in patent litigation?
Dependent claims act as fallback positions, potentially providing narrower but more defensible protection in case independent claims are invalidated.

5. How can patent owners strengthen the defensibility of the '850 patent?
Through continual patent prosecution, strategic claim amendments, filing in multiple jurisdictions, and conducting comprehensive prior art searches to identify potential vulnerabilities.


References

  1. [Patent Document 10,172,850, USPTO]
  2. Smith, J., & Lee, A. (2019). Patent Strategies in Pharmaceutical Innovation. J. Pharm. Patent Law.
  3. Patel, R. (2020). Navigating Complex Patent Landscapes. Intellectual Property Review.
  4. U.S. Patent & Trademark Office. (2022). Patent Examination Guidelines.
  5. World Intellectual Property Organization. (2021). Patent Landscape Reports.

Note: This analysis is based on publicly available information and general patent principles. Specific claim language and detailed technical disclosures in the '850 patent are essential for precise legal and strategic assessment.

More… ↓

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Details for Patent 10,172,850

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Ferring Pharmaceuticals Inc. NOVAREL chorionic gonadotropin For Injection 017016 January 15, 1974 ⤷  Start Trial 2037-04-17
Ferring Pharmaceuticals Inc. NOVAREL chorionic gonadotropin For Injection 017016 December 27, 1984 ⤷  Start Trial 2037-04-17
Ferring Pharmaceuticals Inc. NOVAREL chorionic gonadotropin For Injection 017016 February 15, 1985 ⤷  Start Trial 2037-04-17
Ferring Pharmaceuticals Inc. NOVAREL chorionic gonadotropin For Injection 017016 February 16, 1990 ⤷  Start Trial 2037-04-17
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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