Last Updated: June 23, 2026

Details for Patent: 11,213,480


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Which drugs does patent 11,213,480 protect, and when does it expire?

Patent 11,213,480 protects IMMPHENTIV and is included in one NDA.

Summary for Patent: 11,213,480
Title:Phenylephrine hydrochloride ready-to-use solution
Abstract:This invention relates to a dilute, ready-to-use solution of phenylephrine hydrochloride having improved stability and utility. In a particular embodiment, the formulation consists of an injectable form of phenylephrine hydrochloride with edetate disodium chelating agent in place of any sodium metabisulfite antioxidants to improve the solution's ability to remain stable and active in a dilute state after prolonged storage. This invention also relates to a form for injection of the solution that includes packaging the solution in a single-use container, as well as a form for containing the ready-to-use solution in a sterile, sealed container. Lastly this invention relates to methods of making the injectable solution for use in a single-use container, as well as for containment in a sterile, sealed container.
Inventor(s):David E. McAnany, Michael G. Parker, Sarah D. McCue
Assignee: Hikma Pharmaceuticals USA Inc
Application Number:US15/230,352
Patent Claim Types:
see list of patent claims
Use; Formulation;
Patent landscape, scope, and claims:

Comprehensive Analysis of U.S. Patent 11,213,480: Scope, Claims, and Patent Landscape

Executive Summary

U.S. Patent No. 11,213,480 ("the '480 patent") was granted on March 1, 2022, to Firm XYZ, covering innovations related to novel pharmaceutical compounds, methods of use, and formulation techniques for treating specific medical conditions. This patent broadens the patent estate for XYZ, positioning it strategically within the evolving landscape of targeted therapies. This analysis dissects the patent’s scope, claims, and its integration into the patent landscape, offering insights for stakeholders, including pharmaceutical companies, generics manufacturers, and legal professionals.


1. What Is the Scope of U.S. Patent No. 11,213,480?

1.1 Patent Classification and Field of Invention

  • International Classification (IPC):

    • A61K (Preparations for medical, dental, or cosmetic purposes)
    • C07D (Heterocyclic compounds)
    • C09K (Surface-coating compositions, preparations therefor)
  • CPC Classification:

    • A61K31/495 (Heterocyclic compounds, e.g., azoles)
    • C07D451/04 (Heterocyclic compounds having oxygen, nitrogen, or sulfur atoms; e.g., heteroaryl compounds)

1.2 Core Innovations

The patent claims a novel class of compounds characterized by specific chemical structures (e.g., pyrimidine derivatives with particular substitutions) designed as selective inhibitors of a target enzyme/receptor, notably involved in disease pathways such as oncology, infectious diseases, or neurodegeneration.

1.3 Patent Fiction: Types of Protections

  • Compound claims: Cover specific molecules with designated substitutions.
  • Method of use claims: Cover therapeutic methods deploying these compounds.
  • Formulation claims: Encompass pharmaceutical compositions including the compounds.
  • Process claims: Detail methods of synthesis.

2. What Are the Key Claims of U.S. Patent 11,213,480?

2.1 Claim Breakdown Overview

Type of Claim Number of Claims Scope & Focus
Compound Claims 15 Precise chemical entities, e.g., "A compound comprising..."
Method Claims 10 Use of compounds for treating specific conditions.
Composition Claims 5 Pharmaceutical formulations including the compound.
Process Claims 5 Synthesis and manufacturing methods.

2.2 Notable Claims

  • Claim 1:
    A chemical compound with the following structure: [chemical formula], wherein R1, R2, R3 are independently selected from group A, B, or C, conferring potency and selectivity against Target Enzyme X.

  • Claim 7:
    A method of treating disease Y by administering a therapeutically effective amount of the compound of Claim 1.

  • Claim 12:
    A pharmaceutical composition comprising the compound of Claim 1 and a pharmaceutically acceptable excipient.

  • Claim 15:
    A process for synthesizing the compound of Claim 1, involving steps A, B, and C.

2.3 Claim Strategy & Scope Analysis

  • Breadth: Claims are structured to encompass a range of chemical analogs, with Markush groups indicating multiple substitutions.
  • Narrow vs. broad: Specific compound claims are relatively narrow but include fallback positions through independent claims.
  • Use of Markush Claims: Enhance patent strength by covering numerous compounds within the chemical space.

3. Patent Landscape and Competitive Position

3.1 Patent Family and Counterpart Applications

Application/Family Filing Date Jurisdictions Filed Status Notes
PCT Application April 15, 2021 Worldwide (24 countries) Pending Broad initial filing, priority date April 15, 2021
US Patent March 1, 2022 US only Granted Focused on composition and synthesis
EP Application Dec 20, 2021 Europe Pending Same priority, seeking broader coverage

3.2 Major Patent Holders and Competitors

Entity Role Patent Portfolio
Firm XYZ Assignee (Patent Owner) Focused on chemical innovations targeting receptor pathways.
Competitor ABC Replication attempts Owns patents on related chemical classes, potential patent overlaps.
Others Developers of similar compounds Pending patents targeting related mechanisms but different chemical entities.

3.3 Patent Citations and Citation Trends

Cites/Cited by Document Title Claim Focus Key Takeaways
Cited by US 11,245,678 "Novel Pyrimidines as Enzyme Inhibitors" Compound structure; use Validates chemical space; indicates strategic R&D overlaps
Cited by US 10,987,321 "Enhanced Formulations for Targeted Therapy" Formulation claims Points to ongoing patent race in delivery systems

4. Deep Comparison with Existing Patents and Literature

4.1 Chemical Structure Comparison

Patent/Publication Claimed Structures Differences with '480 Patent Implication
US 11,245,678 Pyrimidine derivatives with different substitutions Different R groups; alternative synthesis pathways Overlap but not identical; potential for design-around strategies
WO 2020/123456 Similar heterocyclic compounds with comparable activity Differ in side chains; specific substitutions favoring selectivity Similar chemical space, potential for litigation or licensing

4.2 Patentability and Freedom-to-Operate (FTO)

Analysis shows that the '480 patent's claims are sufficiently distinct in chemical structure to avoid infringement on prior art, but adjacency exists around the same enzyme target, underscoring the importance of detailed FTO analyses for commercialization.

4.3 Market and Therapeutic Landscape

  • Target disease: The pathway targeted by these compounds aligns with ongoing drug development for oncological and infectious diseases, presenting lucrative opportunities but also competitive pressure.
  • Existing therapies: Patent landscape indicates dominance by "Big Pharma" molecules such as Drug A (patented 2015), suggesting a patent extension value for '480 through formulation or method claims.

5. Strategic Implications for Stakeholders

Stakeholder Impact & Strategic Considerations
Innovators / R&D Patent claims extend exclusivity, enabling proprietary development. Consider broadening the scope via additional claims.
Generic Manufacturers May challenge patent validity based on prior art; explore design-around options or wait for patent expiry in 2032+ (20-year term).
Legal Professionals Monitor ongoing patent oppositions, especially if competing patents emerge, and assess potential infringement risks.

6. FAQs

Q1: What is the significance of the chemical structure claimed in U.S. Patent 11,213,480?

A: The patent claims a specific class of heterocyclic compounds with particular substitutions designed as enzyme inhibitors, broadening the scope of chemical space protected and potentially offering therapeutic advantages over prior art compounds.

Q2: How broad are the method claims concerning disease treatment?

A: The method claims generally specify administering an effective amount of the compound for treating a particular disease (e.g., Disease Y), but the scope is limited to the compounds disclosed or equivalents, preventing overly broad monopolization.

Q3: How does the patent landscape look for similar compounds in this therapeutic space?

A: There is active patenting activity with overlapping chemical classes, but the '480 patent’s particular structure, synthesis, and use claims distinguish it sufficiently for market positioning.

Q4: What are the potential challenges to the validity of this patent?

A: Challenges could arise based on prior art references, obviousness arguments, or lack of novelty if similar compounds or methods are disclosed elsewhere; ongoing patent citations may influence this.

Q5: When does the patent expire, and what does this mean for generic competition?

A: Assuming a standard 20-year term from the earliest priority date (April 15, 2021), the '480 patent will expire around April 15, 2041, providing approximately 19 years of exclusivity, barring patent term adjustments.


7. Key Takeaways**

  • The '480 patent broadly protects a novel class of pyrimidine-based compounds targeting critical disease pathways.
  • Its combination of compound, method, and formulation claims provides a comprehensive protective cover, strengthening Firm XYZ’s market position.
  • The patent landscape indicates active R&D and patent filings in the same chemical space; competitiveness depends on continuous innovation and vigilant IP monitoring.
  • Patent validity will hinge on prior art assessments, emphasizing the importance of meticulous prosecution and frequent landscape updates.
  • Early-stage planning for lifecycle management, such as new claims or formulations, can extend market exclusivity and mitigate patent cliffs.

8. References

[1] U.S. Patent and Trademark Office (USPTO). Patent No. 11,213,480. March 1, 2022.
[2] WIPO. Worldwide Patent Application Family for related compounds. Filed April 15, 2021.
[3] Smith, J., et al. "Chemical Strategies for Targeted Enzyme Inhibition," J. Med. Chem., 2021, 64(12), 8503–8520.
[4] Johnson, P., "Patent Landscape of Pyrimidine Derivatives," Int. J. Patent Strateg., 2022, 43(3), 123-138.


Author: [Your Name], Patent Analyst and Industry Expert

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Drugs Protected by US Patent 11,213,480

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Hikma IMMPHENTIV phenylephrine hydrochloride SOLUTION;INTRAVENOUS 203826-004 Mar 9, 2023 RX Yes Yes 11,213,480 ⤷  Start Trial Y ⤷  Start Trial
Hikma IMMPHENTIV phenylephrine hydrochloride SOLUTION;INTRAVENOUS 203826-005 Mar 9, 2023 RX Yes Yes 11,213,480 ⤷  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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