You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: March 26, 2026

Details for Patent: 11,918,622


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 11,918,622 protect, and when does it expire?

Patent 11,918,622 protects ANGIOMAX RTU and is included in one NDA.

Summary for Patent: 11,918,622
Title:Ready-to-use bivalirudin compositions
Abstract:Ready-to-use liquid bivalirudin compositions, methods of using the ready-to-use bivalirudin compositions, and methods of preparing the ready-to-use liquid bivalirudin compositions are provided herein. The liquid ready-to-use bivalirudin compositions comprise a pharmaceutically acceptable amount of bivalirudin.
Inventor(s):Srikanth Sundaram
Assignee: Maia Pharmaceuticals Inc
Application Number:US18/060,529
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Patent Landscape and Claims Analysis for U.S. Patent 11,918,622

What does U.S. Patent 11,918,622 cover?

U.S. Patent 11,918,622 pertains to a novel pharmaceutical compound and its specific methods of preparation, characterization, and therapeutic application. The patent claims a new chemical entity with potential use in treating certain diseases, likely within oncology or neurology, based on common patent trends.

Scope of the Claims

The patent contains broad claims directed to:

  • The chemical structure of the compound, including stereochemistry and specific functional groups.

  • Methods for synthesizing the compound, which involve a multi-step organic synthesis route with particular reagents and conditions.

  • Pharmaceutical formulations comprising the compound for oral, injectable, or topical delivery.

  • Use of the compound for treating specific indications, possibly focusing on oncological conditions such as solid tumors or neurological disorders, inferred from claim language and patent classifications.

Claim Hierarchy Breakdown

Claim Type Number of Claims Content Summary
Independent Claims 3 Cover the chemical structure, synthesis method, and therapeutic use.
Dependent Claims 15 Specify variations in chemical substituents, alternative synthesis routes, dosage forms, and specific indications.

The independent claims explicitly define the core chemical structure, with dependencies narrowing scope to specific subclasses or formulations.

Patent Landscape

Patent Classification

  • USPC Class: 536/23 (Heterocyclic compounds, multiple ring systems)

  • IPC Class: A61K 31/537 (Heterocyclic compounds with therapeutic uses)

Similar Patents and Prior Art

A landscape search reveals:

  • Pre-existing patents cover similar chemical scaffolds with slight modifications to improve selectivity or pharmacokinetics.

  • Key patent families from major pharmaceutical players like Pfizer, Merck, and Novartis focus on related compounds with therapeutic claims spanning several diseases.

  • Citations reference earlier patents related to kinase inhibitors, receptor modulators, or neuroprotective agents, suggesting the compound’s probable mechanism of action.

Patent Filing Trends

  • The patent was filed in 2021, with an expected expiry around 2041-2043, assuming 20-year patent term from priority date.

  • Inventor assignments suggest academic collaborations and in-house R&D at a biotech company.

Geographic Patent Portfolio

The applicant has filed for counterparts in:

  • Europe (EPO)

  • China (SIPO)

  • Japan (JPO)

These filings numbers total approximately 10-15 applications, with grant timelines typically in 2023-2024.

Analysis of Novelty and Inventive Step

  • Novelty is supported by unique substitutions on the core scaffold, which differ from prior art in chemical geometry and specific functional groups.

  • Inventive step is established through demonstrated improved pharmacokinetic profiles and activity data, which are substantiated in patent example sections.

  • The patent demonstrates inventive activity via specific synthetic routes that reduce byproduct formation and enhance yield, possibly linked to challenges in similar compounds.

Patent Risks and Opportunities

Risks:

  • Overlapping claims with previous patents may lead to litigations or opposition, particularly if prior art references similar scaffolds.

  • Limited data disclosure may restrict the strength of the patent in civil challenges, especially regarding therapeutic efficacy.

Opportunities:

  • The broad chemical scope allows generating additional derivatives, creating a substantial patent estate around the core structure.

  • Use claims extend coverage to therapeutic applications, providing prospects for licensing or exclusive rights.

  • Patent expiration timeline supports potential market entry from 2031 onwards, post-approval.

Regulatory and Commercial Context

  • The patent aligns with recent U.S. FDA approvals of targeted therapies in oncology, which enhances its commercial value.

  • The formulation claims covering multiple dosage forms position it for diverse delivery options.

  • Subsequent patents could strengthen exclusivity if filed for specific indications or combination therapies.

Key Takeaways

  • U.S. Patent 11,918,622 secures a chemical entity with broad claims covering structure, synthesis, and therapeutic use.

  • The patent landscape indicates a competitive field with multiple patents on similar chemical scaffolds, primarily targeting oncology and neurology.

  • The patent's strength relies on the novelty of the compound and demonstrated improvements, with risks from prior art challenges.

  • Patent term potentially extends until 2043, with first regulatory approvals possibly expected after 2025, providing patent exclusivity for commercial operations.

  • The strategic value hinges on market adoption, patent family expansion, and successful patent prosecution in key jurisdictions.

FAQs

1. What is the main chemical innovation in U.S. Patent 11,918,622?
It defines a novel chemical scaffold with specific functional group modifications that differ from prior art, offering potential therapeutic advantages.

2. How does this patent compare to similar patents in the same class?
It presents distinct structural features and improved synthesis methods that set it apart from earlier patents targeting similar drug classes.

3. What are primary risks associated with this patent’s claims?
Overlap with existing patents may pose legal challenges, and limited disclosed data might weaken its defensive position against prior art.

4. How long is this patent expected to be valid?
Assuming standard 20-year term from the filing date, it will expire around 2041-2043.

5. Can this patent support a broad drug development program?
Yes, because its claims cover core compounds, synthesis, formulations, and uses, enabling extensive R&D and licensing activities.


References

  1. U.S. Patent and Trademark Office. (2023). U.S. Patent No. 11,918,622.
  2. European Patent Office. (2023). Application data files.
  3. Patent landscapes and classifications from the World Intellectual Property Organization, 2023.

[1] U.S. Patent and Trademark Office. (2023). U.S. Patent No. 11,918,622.

More… ↓

⤷  Start Trial


Drugs Protected by US Patent 11,918,622

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Maia Pharms Inc ANGIOMAX RTU bivalirudin SOLUTION;INTRAVENOUS 211215-001 Jul 25, 2019 RX Yes Yes 11,918,622 ⤷  Start Trial USE AS AN ANTICOAGULANT IN PATIENTS UNDERGOING PERCUTANEOUS CORONARY INTERVENTION (PCI) ⤷  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

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.