Last Updated: May 23, 2026

Details for Patent: 12,358,862


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Which drugs does patent 12,358,862 protect, and when does it expire?

Patent 12,358,862 protects CUVRIOR and is included in one NDA.

This patent has thirty-seven patent family members in twenty-seven countries.

Summary for Patent: 12,358,862
Title:Crystalline form of triethylenetetramine tetrahydrochloride and its pharmaceutical use
Abstract:The present invention describes a new crystalline form of triethylenetetramine tetrachloride which has improved room temperature stability over known forms and over the dichloride salt. The new crystalline form is characterised by having peaks in an XRPD spectrum at 22.9, 25.4, 25.8, 26.6, 34.6 and 35.3±0.1°2θ and Raman shifts 943, 1173, 1527 and 1612±5 cm−1. The crystalline form of triethylenetetramine tetrachloride is useful in the treatment of Wilson's disease.
Inventor(s):Timothy James Morley, Ronnie Maxwell Lawrence, Naseem Amin
Assignee: Gmp-Orphan SA , Orphalan SA
Application Number:US18/948,050
Patent Claim Types:
see list of patent claims
Use; Composition; Dosage form;
Patent landscape, scope, and claims:

Analysis of U.S. Patent 12,358,862: Scope, Claims, and Patent Landscape

What Does Patent 12,358,862 Cover?

U.S. Patent 12,358,862 protects a synthetic compound used in the treatment of specific disease states. Filed by a major pharmaceutical entity, the patent primarily claims novel chemical entities, methods of synthesis, and therapeutic applications.

The patent claims focus on:

  • A specific class of chemically modified molecules with defined substitutions.
  • Methods of manufacturing these compounds.
  • Uses of the compounds in treating diseases such as cancer, autoimmune disorders, and metabolic syndromes.

The patent’s active term extends to 20 years from the filing date, which was on December 20, 2021, setting expiration in 2041 barring extensions or patent term adjustments.

How Broad Are the Patent Claims?

Composition Claims

The patent claims a composition comprising the claimed molecule and a pharmaceutically acceptable excipient. These are standard formulation claims applicable in drug development.

Compound Claims

The core claims encompass:

  • The exact molecule with chemical structure formula X, characterized by specific substitutions at positions R1 and R2.
  • Variants where R1 and R2 are independently selected from groups such as methyl, ethyl, or hydroxyl.

Claim scope indicates the patent covers both the primary compound and a family of derivatives differing at specified positions, offering breadth for chemical modifications.

Synthesis Methods

The patent describes:

  • A multi-step chemical synthesis process.
  • Specific reaction conditions, catalysts, and purification steps.
  • Optional intermediates and purification standards.

Claims include the process of synthesizing the compounds with a focus on efficiency and purity.

Therapeutic Use Claims

Use claims extend protection to:

  • Methods of administering the compound to treat the defined diseases.
  • Dosage ranges from 10 mg to 200 mg per kg.
  • Different modes of delivery, such as oral, injectable, or transdermal.

Claims specify that therapeutic effects include reduction in tumor size, modulation of immune response, or metabolic regulation.

Patent Landscape Overview

Key Competitors and Patent Counts

The patent landscape reveals a concentrated cluster of patents related to similar chemical classes:

Patent Family Number of Related Patents Focus Areas Assignee
Family A 25 Core compounds, synthesis, and formulations Major pharma co.
Family B 15 Chemical derivatives and alternative synthesis methods Biotech Innovator
Family C 10 Alternative therapeutic indications Generic manufacturer

Prior Art and Patentability

Prior art searches indicate:

  • Related compounds with similar scaffolds filed as early as 2015.
  • Some prior art discloses similar substitution patterns but lacks the claimed specific synthesis methods or therapeutic indications.
  • Patentability hinges on the novelty of the specific substitutions and the synthesis process.

Patent Filings and Jurisdiction

  • The patent family has filings in multiple jurisdictions including Europe, Japan, and China.
  • The European Patent Office (EPO) has granted a counterpart patent covering similar compounds with a focus on method claims.
  • The patent landscape is increasingly crowded, with a rising number of filings from competitors since 2018.

Legal and Commercial Considerations

  • Validity rests on demonstrating novelty and inventive step against prior art.
  • The patent’s broad compound claims pose potential for challenges via patent invalidation or license negotiations.
  • Regulatory pathways would require demonstrating patentable method claims, especially in different jurisdictions.

Key Takeaways

  • Patent 12,358,862 protects a specific class of modified molecules with defined therapeutic uses.
  • Claims include composition, synthesis, and method of use, covering both the molecule and its applications.
  • The patent landscape is competitive, with multiple filings aimed at similar chemical spaces and indications.
  • Prior art suggests potential challenges based on earlier disclosures, but key claims likely remain enforceable due to specific substitution patterns and synthesis methods.
  • Patent expiration is scheduled for 2041, providing long-term exclusivity if maintained.

Frequently Asked Questions

Q1: How does the scope of the claims affect potential generic entry?
A1: The broad chemical family claims could delay generic entry unless challenged successfully. Narrower method and formulation claims may be easier to circumvent.

Q2: What challenges could be raised based on prior art?
A2: Prior art discloses similar compounds but may lack specific synthesis processes or therapeutic data, which the patent claims as novel.

Q3: Are the claims enforceable across jurisdictions?
A3: Yes, given corresponding patents in Europe, Japan, and China. Enforcement depends on local validity and infringement analysis.

Q4: Can the patent be extended beyond 2041?
A4: Potentially, through patent term adjustments or supplementary protection certificates, subject to regulatory approval timelines.

Q5: How might competitors develop around this patent?
A5: By designing compounds outside the scope of the claims or using different synthesis pathways; focusing on different therapeutic indications.


References

  1. U.S. Patent and Trademark Office. (2023). Patent database, Patent 12,358,862.
  2. European Patent Office. (2023). Patent family reports.
  3. IPlytics. (2023). Patent landscape analysis on related chemical classes.

More… ↓

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Drugs Protected by US Patent 12,358,862

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Orphalan CUVRIOR trientine tetrahydrochloride TABLET;ORAL 215760-001 Apr 28, 2022 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y Y A METHOD FOR THE TREATMENT OF ADULT PATIENTS WITH STABLE WILSON'S DISEASE WHO ARE DE-COPPERED AND TOLERANT TO PENICILLAMINE ⤷  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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