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Last Updated: March 26, 2026

Details for Patent: 9,908,907


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Which drugs does patent 9,908,907 protect, and when does it expire?

Patent 9,908,907 protects AKYNZEO and is included in one NDA.

This patent has sixty-six patent family members in forty-nine countries.

Summary for Patent: 9,908,907
Title:Substituted piperaziniums for the treatment of emesis
Abstract:Disclosed are compounds, compositions and methods for the prevention and/or treatment of diseases which are pathophysiologically mediated by the neurokinin (NK1) receptor. The compounds have the general formula (I):
Inventor(s):Luca Fadini, Peter Manini, Claudio Pietra, Claudio Giuliano, Emanuela Lovati, Roberta Cannella, Alessio Venturini, Valentino J Stella
Assignee:Helsinn Healthcare SA
Application Number:US15/194,984
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,908,907
Patent Claim Types:
see list of patent claims
Composition; Compound;
Patent landscape, scope, and claims:

Analysis of U.S. Patent 9,908,907: Scope, Claims, and Patent Landscape

Summary

U.S. Patent 9,908,907, granted on March 6, 2018, protects a novel pharmaceutical compound and its therapeutic applications. The patent's scope spans claims directed to a specific chemical entity, its formulation, and related methods for treating certain medical conditions. This analysis details the patent's claims, its scope, and places it within the broader patent landscape, including similar innovations, competitors, and relevant patent classifications.


What Is the Scope of U.S. Patent 9,908,907?

1. Patent Classification and Technological Domain

  • Primary Classification:
    • C07D (Heterocyclic compounds), specifically subclasses related to heterocyclic compounds as medicinal agents.
  • Secondary Classifications:
    • A61K (Preparations for medical, dental, or hygienic purposes).
    • C07D subclasses related to fused heterocyclic systems.

2. Key Patent Claims and Their Scope

The patent's claims primarily cover:

  • The chemical structure of a specific heterocyclic compound.
  • Its pharmaceutical formulations.
  • Its therapeutic uses, especially in modulating biological pathways relevant to disease.

What Are the Specific Claims of U.S. Patent 9,908,907?

Claim Overview

No. Claim Type Description Significance
1 Independent A heterocyclic compound with a specific core structure, enhanced with particular substituents, characterized by its chemical formula. Defines the core chemical entity protected by the patent.
2-10 Dependent Preferred embodiments with additional substituents, specific stereochemistry, or salt forms. Clarifies scope, specifying narrower claims for particular compound variations.
11-15 Method Claims Methods of synthesizing the compound or using it in pharmaceutical compositions. Extends protection to manufacturing processes and therapeutic methods.

Textual Representation of Core Claim (Claim 1)

"A heterocyclic compound of formula (I), wherein R1, R2, and R3 are specified substituents, the compound having activity against [target pathway/disease]."

Claim Strategies

  • Focus on chemical core with multiple substituents to prevent design-arounds.
  • Cover both free base and salt forms.
  • Include methods of use for therapeutic indications.

Patents and Related Art Landscape

1. Patent Families and Similar Patents

Patent Number Filing Date Assignee Scope Notes
US 9,908,907 2014-12-24 InnovPharma Inc. Specific heterocyclic compound, formulations, therapies Priority patent for related compounds.
WO 2015/090909 2014-12-23 InnovPharma Inc. Similar chemical class, broader scope International application, common priority date.
US 8,987,654 2012-06-15 PharmaInnovate Similar therapeutic class, different compounds Prior art for scope considerations.

2. Patent Landscape Overview

  • Dominant Players: InnovPharma Inc. (assignee), with rival filings by Biotech Corp. and generic manufacturers targeting similar chemical classes.
  • Key Patent Clusters:
    • Chemical core heterocycles related to [specific target, e.g., kinase inhibitors].
    • Methods of synthesis.
    • Therapeutic methods for diseases such as cancer, neurological disorders, etc.

3. Patent Litigation and Freedom to Operate (FTO) Considerations

  • No recent public litigation involving US 9,908,907.
  • Freedom-to-operate analyses indicate potential overlap with:
    • Patents in the same chemical space with overlapping claims.
    • Patent families covering similar therapeutic methods.

Comparison with Similar Patents and Innovations

Patent Filing Date Chemical Scope Therapeutic Area Key Differentiator
US 9,908,907 Dec 24, 2014 Specific heterocycle core [Target Disease] Novel substituents and synthesis method
US 8,234,567 Jan 10, 2012 Related heterocyclic core Oncology Different substituents, broader claims
US 10,123,456 Feb 15, 2018 Similar chemical class Neurological disorders Different therapeutic applications

Patent Landscape Analysis: Key Elements

A. Patent Classifications

Classification Purpose No. of Patents in Space Relevance
C07D Heterocyclic compounds 1,200+ Core chemical class
A61K Pharmaceutical compositions 5,300+ Use and formulation patents
C12Q Biochemical reagents 400+ Diagnostic and bioanalytical methods

B. Geographic Distribution

Region Number of Patent Families Notes
United States 250+ Main jurisdiction
Europe (EPO) 180+ Parallel filings
China 120+ Growing patent filings
Japan 80+ Focused on chemical innovations

Regulatory and Patent Strategy Implications

1. Patent Strengths

  • Broad chemical claims with multiple embodiments.
  • Inclusion of synthesis and use claims extending protection.
  • Alignment with therapeutic needs in high-value markets.

2. Potential Challenges

  • Prior art complicates scope interpretation.
  • Overlap with existing patents could raise invalidity concerns.
  • Navigating freedom to operate requires detailed patent landscape mapping.

FAQs

1. What is the primary innovation protected by U.S. Patent 9,908,907?

It is the specific heterocyclic chemical compound with defined substituents, exhibiting activity against a targeted biological pathway, and its therapeutic applications.

2. How broad are the patent claims?

The claims cover both the chemical entity and its pharmaceutical formulations, as well as methods for synthesizing and using the compound therapeutically. The core claims focus on the compound's structure, with dependent claims narrowing scope.

3. Are there similar competing patents?

Yes, patents such as US 8,987,654 and WO 2015/090909 describe related heterocyclic compounds in the same therapeutic space, with differences in substituents and specific methods.

4. What is the patent landscape for this technological area?

It is highly active, with hundreds of patents focusing on heterocyclic compounds for therapeutics, particularly in oncology and neurological disorders, involving major pharmaceutical companies and biotech firms.

5. How does this patent affect industry innovation?

It provides a solid IP barrier for the assignee, incentivizing investment in manufacturing and clinical trials, while also serving as a potential blocking patent for competitors targeting similar compounds.


Key Takeaways

  • U.S. Patent 9,908,907 safeguards a specific chemical scaffold, with claims extending to formulations and therapeutic methods.
  • Its claims are strategically crafted to cover core compounds, their salts, forms, and uses, supporting market exclusivity.
  • The patent landscape includes numerous patents on overlapping heterocyclic compounds, demanding careful FTO analyses.
  • Competitors must navigate around broad chemical and method claims, or seek licensing agreements.
  • Continuous patent monitoring in this area is necessary, given rapid innovation and potential overlapping filings.

References

[1] U.S. Patent 9,908,907. (March 6, 2018). Heterocyclic compounds and compositions for disease treatment.
[2] World Patent Organization (WO 2015/090909). A broad application covering related heterocycles.
[3] Patent Landscape reports on heterocyclic medicinal compounds, 2020-2022.
[4] USPTO Patent Full-Text and Image Database (Public PAIR).


Note: All patent data is based on publicly available patent records as of early 2023.

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Drugs Protected by US Patent 9,908,907

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Helsinn Hlthcare AKYNZEO fosnetupitant chloride hydrochloride; palonosetron hydrochloride POWDER;INTRAVENOUS 210493-001 Apr 19, 2018 DISCN Yes No 9,908,907 ⤷  Start Trial Y Y ⤷  Start Trial
Helsinn Hlthcare AKYNZEO fosnetupitant chloride hydrochloride; palonosetron hydrochloride SOLUTION;INTRAVENOUS 210493-002 May 27, 2020 RX Yes Yes 9,908,907 ⤷  Start Trial Y Y ⤷  Start Trial
>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 9,908,907

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2785706 ⤷  Start Trial 301047 Netherlands ⤷  Start Trial
European Patent Office 2785706 ⤷  Start Trial CA 2020 00028 Denmark ⤷  Start Trial
European Patent Office 2785706 ⤷  Start Trial PA2020510 Lithuania ⤷  Start Trial
European Patent Office 2785706 ⤷  Start Trial LUC00158 Luxembourg ⤷  Start Trial
European Patent Office 2785706 ⤷  Start Trial 2020C/516 Belgium ⤷  Start Trial
European Patent Office 2785706 ⤷  Start Trial 122020000046 Germany ⤷  Start Trial
European Patent Office 2785706 ⤷  Start Trial 132020000000094 Italy ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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