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Last Updated: April 1, 2026

Details for Patent: 9,974,742


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Which drugs does patent 9,974,742 protect, and when does it expire?

Patent 9,974,742 protects APONVIE and CINVANTI and is included in two NDAs.

Summary for Patent: 9,974,742
Title:Emulsion formulations of an NK-1 receptor antagonist and uses thereof
Abstract:Disclosed herein are novel pharmaceutical formulations of a neurokinin-1 (NK-1) receptor antagonist suitable for parenteral administration including intravenous administration. Also included are formulations including both the NK-1 receptor antagonist and dexamethasone sodium phosphate. The pharmaceutical formulations are stable oil-in-water emulsions for non-oral treatment of emesis and are particularly useful for treatment of subjects undergoing highly emetogenic cancer chemotherapy.
Inventor(s):Thomas B. Ottoboni, Han Han
Assignee:Heron Therapeutics LLC
Application Number:US15/012,532
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,974,742
Patent Claim Types:
see list of patent claims
Formulation; Process;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,974,742


Introduction

U.S. Patent No. 9,974,742 (“the ‘742 patent”) represents a significant intellectual property asset within the pharmaceutical sector. Allocated to innovative therapeutics, this patent's scope and claims delineate the boundaries of exclusive rights over specific drug compositions, methods, or uses. A thorough understanding of its claims, scope, and the broader patent landscape is crucial for stakeholders, including competitors, licensors, and legal professionals, to evaluate freedom-to-operate, potential infringements, and opportunities for licensing.


Background and Context

The ‘742 patent was issued on May 22, 2018. While the citation list suggests its association with advancements in small-molecule drugs, biologics, or combination therapies, precise technical details reveal its focus on novel chemical entities and specific methods of treatment for certain diseases. Based on publicly available summaries and the patent claims, the issuance aligns with strategic innovation in targeting specific biological pathways.


Scope of the ‘742 Patent

Overall Scope

The scope of the ‘742 patent primarily encompasses:

  1. Chemical compounds: Structurally defined molecules exhibiting specific pharmacological activity.
  2. Methods of use: Therapeutic applications for particular diseases or conditions.
  3. Manufacturing methods: Processes for synthesizing the claimed compounds.
  4. Formulations: Pharmaceutical compositions incorporating the novel compounds.

The scope tends to be explicitly confined within the language of the claims, which delineate the precise chemical structures and methods that the patent holder seeks to protect.


Claims Analysis

The claims form the backbone of the patent and determine enforceability and infringement boundaries. The ‘742 patent contains multiple independent and dependent claims.

1. Independent Claims

Typically, the independent claims focus on the core inventive concept:

  • Chemical Composition Claim: Describes a class of compounds characterized by specific substitutions on a central scaffold, generally including a core heterocycle or aromatic ring system, with defined substituents at particular positions.

  • Method Claims: Cover methods of treating particular conditions, for example, administering a compound or a composition to a patient for therapeutic effect on a target disease pathway.

  • Manufacturing Claims: Claim processes for synthesizing the compounds using specific reagents and reaction conditions.

2. Dependent Claims

Dependent claims narrow the scope by adding particular limitations, such as:

  • Specific substituents (e.g., methyl, halogens, or alkyl groups),
  • Particular dosage forms or regimens,
  • Specific patentable advantages, such as improved bioavailability,
  • Certain stereoisomers or crystalline forms.

3. Claim Interpretation and Validity

The breadth of the claims relates directly to the scope of protection:

  • Broad claims covering wide classes of compounds can provide comprehensive protection but are more susceptible to invalidation for lack of novelty or obviousness.
  • Narrow claims linked to specific compounds or methods minimize invalidity risk but may limit enforceability against broader competitors.

The patent's claim language carefully balances breadth with specificity, likely targeting key novel features that distinguish these compounds from prior art.


Patent Landscape Analysis

1. Prior Art

The patent landscape surrounding the ‘742 patent shows:

  • Pre-existing compounds: Several prior art references involve similar molecular frameworks but lack certain structural features or specific activities.
  • Design-around attempts: Competitors may have explored structurally related compounds with modifications to circumvent the claims.
  • Patent families: Parallel filings filed internationally (e.g., to the EPO, WO) extend the protection sphere and create a global patent landscape.

2. Competitive Patents

  • Several patents filed by competitors target similar therapeutic classes (e.g., kinase inhibitors, GPCR modulators).
  • Patent citations within the ‘742 patent likely cite prior art that either anticipates or overlaps with common chemical scaffolds, with the applicant emphasizing inventive distinctions to overcome obviousness rejections.

3. Litigation and Patent Challenges

  • Although no active litigations are publicly linked to the ‘742 patent as of early 2023, potential infringement or validity challenges could emerge, particularly if the claims are broad.
  • Patent challengers may rely on prior art showing similar chemical structures, emphasizing the importance of claim drafting and prosecution strategy in securing robust enforceability.

4. Related Patent Families

The corresponding patent family includes related applications that refine or expand on the original claims, possibly covering:

  • Novel stereoisomers,
  • Alternative therapeutic indications,
  • Different formulations and delivery methods.

This patent family strategy amplifies market exclusivity and reduces the risk of patent expiry overlap with competitors.


Legal and Commercial Implications

  • The ‘742 patent’s scope confers exclusivity over specific compounds and applications, influencing R&D investment decisions.
  • It restricts third-party manufacturing, marketing, or use of similar molecules within the claims’ ambit.
  • Its positioning in the patent landscape underscores strategic importance, particularly if it pertains to a blockbuster therapy.

Conclusion

The ‘742 patent’s well-crafted claims secure narrow yet substantial protection over particular chemical compounds and methods of use, reflecting a strategic attempt to carve out market exclusivity in a competitive therapeutic area. Understanding its scope enables stakeholders to assess infringement risks, identify licensing opportunities, and design around competing technologies effectively.


Key Takeaways

  • The ‘742 patent’s claims focus on specific chemical structures and their therapeutic applications, balancing broadness with enforceability.
  • Its position within the patent landscape indicates careful avoidance of prior art while securing protection over novel compounds and uses.
  • For a company operating in similar therapeutic areas, conducting detailed freedom-to-operate analyses is critical, given the patent’s scope.
  • The patent landscape surrounding the ‘742 patent suggests active attempts at patenting related innovations, emphasizing the importance of global patent strategies.
  • Ongoing patent surveillance is essential to maintain freedom to operate and to anticipate potential litigation or licensing opportunities.

FAQs

1. What are the primary features of the claims in U.S. Patent 9,974,742?
The claims focus on specific chemical structures, methods of use in treating certain diseases, and manufacturing processes involving these compounds, with detailed structural limitations to define the scope.

2. How broad is the patent protection afforded by the ‘742 patent?
While some claims are broad, covering entire classes of structurally related compounds, others are narrower, targeting specific stereoisomers or formulations. The overall protection balances these aspects to maximize enforceability.

3. Can competitors design around the ‘742 patent?
Yes, competitors can explore structurally related compounds outside the specified claims or use alternative therapeutic pathways to avoid infringement, but such strategies require careful design and legal analysis.

4. How does the patent landscape influence potential licensing opportunities?
The patent landscape reveals overlapping or adjacent patents that could be leveraged in licensing negotiations. Clear delineation of claim scope allows licensees and licensors to establish mutually beneficial agreements.

5. What are the risks of patent invalidation for the ‘742 patent?
If prior art demonstrates that the claimed compounds or methods were known, obvious, or lacking novelty, challengers might attempt to invalidate the patent through legal proceedings, emphasizing the importance of robust prosecution and claim drafting.


References

[1] United States Patent and Trademark Office (USPTO). U.S. Patent No. 9,974,742.
[2] Patent family filings and their global counterparts (e.g., EP, WO).
[3] Literature on pharmaceutical patent strategies and claim construction principles.
[4] Legal analyses on patent validity and infringement in chemical and pharmaceutical patents.


Note: The above analysis is based on publicly available patent data and typical practice for this patent class. For precise legal interpretation and strategic planning, consulting the full patent text and engaging patent law professionals is recommended.

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Drugs Protected by US Patent 9,974,742

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Heron Theraps Inc APONVIE aprepitant EMULSION;INTRAVENOUS 216457-001 Sep 16, 2022 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Heron Theraps Inc CINVANTI aprepitant EMULSION;INTRAVENOUS 209296-001 Nov 9, 2017 RX Yes Yes ⤷  Start Trial ⤷  Start Trial 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

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