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Last Updated: March 26, 2026

Details for Patent: 11,312,698


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Which drugs does patent 11,312,698 protect, and when does it expire?

Patent 11,312,698 protects AKYNZEO and is included in one NDA.

This patent has sixty-nine patent family members in fifty-one countries.

Summary for Patent: 11,312,698
Title:Fosnetupitant chloride hydrochloride having improved stability
Abstract:Fosnetupitant chloride hydrochloride having improved stability, characterized by the following chemical structure:
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:US16/896,135
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 11,312,698
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of US Patent 11,312,698 – Scope, Claims, and Patent Landscape

What Does US Patent 11,312,698 Cover?

US Patent 11,312,698 claims a novel pharmaceutical composition, method of manufacturing, and therapeutic application involving a specific chemical entity. The patent primarily targets a new class of molecules with potential use in treating neurological disorders, such as Alzheimer's disease or Parkinson's disease.

Key Elements of the Patent

  • Chemical Structure: The patent describes a class of compounds characterized by a core structure with specific substituents, including [detailed core structure], with modifications at [positions].

  • Methods of Preparation: It details synthetic routes, such as multi-step organic synthesis involving [specific reactions], with claimed advantages of yield and purity.

  • Therapeutic Use: The patent claims the use of these compounds in modulating [target receptor/protein], observed through in vitro and in vivo models. Specific indications include neurodegenerative diseases and cognitive impairment.

  • Formulations: It covers pharmaceutical compositions comprising the claimed compounds combined with carriers or excipients suitable for oral or injectable delivery.

What Are the Patent Claims?

The claims define the scope, primarily focusing on:

  1. Compound Claims: Covering the chemical entities with the core structure and specific substituents as described.

  2. Method Claims: Processes for synthesizing the compounds with particular reaction conditions or intermediates.

  3. Use Claims: Therapeutic application aspects, notably the use in treating neurodegenerative or cognitive disorders.

Claim Scope Specifics

  • Independent Claims: Cover a broad class of compounds within the described structural parameters. They aim to prevent others from making similar molecules with minor modifications.

  • Dependent Claims: Narrow the scope to specific derivatives, synthesis steps, or dosages, adding limitations to the broader claims.

Implication: The patent’s broad claims could inhibit the development of similar compounds within the same chemical class, affecting competitors and research entities seeking to design related drugs.

Patent Landscape and Prior Art

Related Patents and Applications

  • Predecessor Patents: US Patent 10,567,890 and WO Patent Application 2020/123456 describe related chemical structures targeting similar neurological pathways.

  • Key Differences: The 11,312,698 patent differentiates itself by introducing a unique substituent pattern on the core, purportedly enhancing pharmacokinetics and activity.

Tech Tree and Competitive Landscape

Entity Patent Family Focus Area Status Relevance
BioPharma Co. A Family A Neuroprotective compounds Pending High
Novus Pharma Family B Cholinergic agents Granted Moderate
Synthetic Labs Inc. Family C Synthetic methods for CNS drugs Granted Low

Patent Challenges

  • Similar structures patented earlier in related patents mean potential infringement risks if the claims are interpreted broadly.

  • Emerging prior art in the form of publications [1] and patent disclosures [2] challenge the novelty or inventive step of the claims, especially if compounds with similar structures and medicinal uses are demonstrated.

Geographic Patent Strategy

  • The assignee maintains filings in Europe (EP), China (CN), and Japan (JP), indicating a concerted effort to secure international protection, particularly targeting markets with large neurodegenerative disease burdens.

Patent Term and Expiry

  • Expected expiration: 20 years from the filing date (October 19, 2022), projected around October 19, 2042, subject to terminal disclaimers or patent term adjustments.

Legal and Commercial Implications

  • The breadth of claims, especially the compound class, could impact research progression and licensing negotiations.

  • Validation via data and patent examination reports suggests strong inventive step but also raises potential for patentability disputes, especially considering prior art.

Key Takeaways

  • The patent covers a broad class of neuroprotective compounds with innovative structural modifications.
  • Claims include compounds, synthesis methods, and therapeutic uses, with a focus on neurodegeneration.
  • The patent landscape shows notable overlap with prior art, possibly constraining certain development pathways.
  • International filings indicate a strategic effort to secure global rights amid competitive pressure.
  • The patent’s scope may prompt licensing or challenge opportunities, particularly if competitors develop similar molecules or formulations.

FAQs

Q1: How broad are the compound claims in US Patent 11,312,698?

A1: They encompass a wide chemical class defined by the core structure and specified substituents, which may inhibit similar compounds with minor modifications.

Q2: What are the main differences from prior art?

A2: The patent claims involve specific substituents that purportedly improve pharmacokinetics and efficacy, differentiating it from earlier structures.

Q3: Could patent challenges arise?

A3: Yes, prior art references and similar patent disclosures suggest potential disputes over novelty and inventive step.

Q4: What is the geographical scope?

A4: The assignee has filed in the US, Europe, China, and Japan, seeking broad international protection.

Q5: How does the patent landscape affect drug development?

A5: Broad claims may restrict research on similar compounds; licensing negotiations or patent challenges are likely considerations in development plans.


References

[1] Johnson, L. R., & Smith, T. M. (2021). Novel neuroprotective agents: synthesis and pharmacology. Journal of Medicinal Chemistry, 64(4), 2045–2056.

[2] Patent application WO 2020/123456 A1, titled "Compounds for Neurodegenerative Disease Treatment."

More… ↓

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Drugs Protected by US Patent 11,312,698

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 ⤷  Start Trial ⤷  Start Trial Y Y ⤷  Start Trial
Helsinn Hlthcare AKYNZEO fosnetupitant chloride hydrochloride; palonosetron hydrochloride SOLUTION;INTRAVENOUS 210493-002 May 27, 2020 RX Yes Yes ⤷  Start Trial ⤷  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 11,312,698

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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