Uniform Cell Aggregate Mass Production Method
Summary
The European Patent Office published patent application EP4159838A1 filed by Orizuru Therapeutics, Inc. and Toyo Seikan Group Holdings, Ltd. for a mass production method of uniform-sized cell aggregates. The application was formally examined and designates all 38 EPO member states and extension countries. This biotechnological innovation has applications in regenerative medicine, drug discovery screening, and tissue engineering.
What changed
The European Patent Office published application EP4159838A1 on March 25, 2026, claiming a method for mass-producing cell aggregates of uniform size. Named inventors are YAMAURA Junji, ITO Ryo, TOYODA Taro, KONAGAYA Shuhei, and SUENAGA Ryo. The application is classified under C12M 3/00 and C12N 5/071 and designates all 38 EPO member states and extension countries.
Entities in the biotechnology, pharmaceutical, and regenerative medicine sectors should review this application to understand the technical approach disclosed and assess potential freedom-to-operate implications for their own cell aggregate production activities.
Source document (simplified)
MASS PRODUCTION METHOD OF UNIFORM SIZE CELL AGGREGATE
Publication EP4159838A1 Kind: A1 Mar 25, 2026
Applicants
Orizuru Therapeutics, Inc., Toyo Seikan Group Holdings, Ltd.
Inventors
YAMAURA Junji, ITO Ryo, TOYODA Taro, KONAGAYA Shuhei, SUENAGA Ryo
IPC Classifications
C12M 3/00 20060101AFI20240610BHEP C12N 5/071 20100101ALI20240610BHEP
Designated States
AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
Related changes
Source
Classification
Who this affects
Taxonomy
Browse Categories
Get Pharma & Drug Safety alerts
Weekly digest. AI-summarized, no noise.
Free. Unsubscribe anytime.
Get alerts for this source
We'll email you when ChangeBridge: EPO Bulletin - Biotech (C12N) publishes new changes.