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Exosome Production Method for Cancer Therapeutic Delivery

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Published April 7th, 2026
Detected April 7th, 2026
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Summary

USPTO granted patent US12594344B2 to China Medical University for a large-scale exosome production method using cyclic tensile bioreactors. The patent covers exosomes with anti-HLA-G protein configured as delivery vehicles for cancer therapeutic agents. The grant includes 10 claims and applies to A61P 35/00 (antineoplastic agents) and related CPC classifications.

What changed

USPTO issued patent US12594344B2 to China Medical University covering a method for producing exosomes at scale using cyclic tensile bioreactor stimulation of cells, combined with exosome compositions having anti-HLA-G protein for targeted cancer therapy delivery. The patent (application no. 18060966, filed December 2, 2022) includes 10 claims and names 9 inventors. CPC classifications indicate application to A61K 47/6901 (drug conjugates), C07K 16/2833 (antibodies), and C12N 5/0686 (cell-based therapies).\n\nPharmaceutical and biotechnology companies developing exosome-based drug delivery systems should review this patent for potential licensing needs or freedom-to-operate considerations. Academic medical centers and research institutions conducting exosome research for cancer therapeutics should assess whether their methods fall within the granted claim scope. Patent grants establish enforceable exclusive rights but do not impose compliance deadlines or penalties on third parties.

Source document (simplified)

← USPTO Patent Grants

Production of exosomes and uses thereof

Grant US12594344B2 Kind: B2 Apr 07, 2026

Assignee

China Medical University

Inventors

Yi-Wen Chen, Der-Yang Cho, Hsin-Yuan Fang, Ming-You Shie, Chih-Ming Pan, Kai-Wen Kan, Cheng-Yu Chen, Min-Hua Yu, Shao-Chih Chiu

Abstract

A method for producing exosomes in a large-scale by using a cyclic tensile bioreactor to stimulate cells to release exosomes. In addition, the exosome having an anti-HLA-G protein specific for cancer is used as a delivery vehicle to deliver therapeutic agents for treating cancer.

CPC Classifications

A61K 47/6901 A61P 35/00 C07K 14/70596 C07K 16/2833 C07K 2317/569 C07K 2319/03 C12N 5/0686 C12N 2527/00

Filing Date

2022-12-02

Application No.

18060966

Claims

10

View original document →

Named provisions

Production of exosomes and uses thereof

Classification

Agency
USPTO
Published
April 7th, 2026
Instrument
Rule
Legal weight
Binding
Stage
Final
Change scope
Minor
Document ID
US12594344B2

Who this affects

Applies to
Pharmaceutical companies Drug manufacturers Healthcare providers
Industry sector
3254 Pharmaceutical Manufacturing 3254.1 Biotechnology
Activity scope
Patent Grant Biopharmaceutical IP Cell Therapy
Geographic scope
United States US

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Healthcare Pharmaceuticals Biotechnology

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