(19)
(11) EP 4 739 768 A1

(12)

(43) Date of publication:
13.05.2026 Bulletin 2026/20

(21) Application number: 23944515.8

(22) Date of filing: 03.07.2023
(51) International Patent Classification (IPC): 
C12N 5/076(2010.01)
A61K 35/52(2015.01)
(52) Cooperative Patent Classification (CPC):
C12N 5/061; C12N 2501/13; C12N 2501/392
(86) International application number:
PCT/US2023/069593
(87) International publication number:
WO 2025/010080 (09.01.2025 Gazette 2025/02)
(84) Designated Contracting 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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(71) Applicant: Paterna Biosciences Inc.
Salt Lake City, UT 84119 (US)

(72) Inventors:
  • HOTALING, Jim M.
    Morristown, New Jersey 07960 (US)
  • CAIRNS, Brad R.
    Morristown, New Jersey 07960 (US)
  • GUO, Jingtao
    Morristown, New Jersey 07960 (US)
  • NIE, Xichen
    Morristown, New Jersey 07960 (US)

(74) Representative: MERH-IP Matias Erny Reichl Hoffmann Patentanwälte PartG mbB 
Paul-Heyse-Straße 29
80336 München
80336 München (DE)

   


(54) PROCESS FOR ESTABLISHING A HUMAN TESTICULAR TISSUE CULTURE SYSTEM