CHOLINE DERIVATIVES AND COMPOSITIONS AND USES THEREOF FOR CRYOPRESERVATION - Patent 4804809

(19)

(11)

EP 4 804 809 A1

(12)

(43)	Date of publication:
	16.09.2026 Bulletin 2026/38

(21)	Application number: 23957882.6

(22)	Date of filing: 10.11.2023

(51)

International Patent Classification (IPC):

A01N 1/10^(2025.01)

(52)	Cooperative Patent Classification (CPC):
	C12N 1/04; C07C 215/40; C07C 229/12; A01N 1/125

(86)	International application number:
	PCT/CA2023/051510

(87)	International publication number:
	WO 2025/097235 (15.05.2025 Gazette 2025/20)

(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: University Of Ottawa
	Ottawa, Ontario K1N 6N5 (CA)

(72)	Inventors:
	BEN, Robert N. Ottawa, Ontario K2A 2B3 (CA) WALSH, Ellyssa M. Gloucester, Ontario K1B 4C5 (CA)

(74)	Representative: Gille Hrabal Partnerschaftsgesellschaft mbB Patentanwälte
	Brucknerstraße 20 40593 Düsseldorf 40593 Düsseldorf (DE)

(54)	CHOLINE DERIVATIVES AND COMPOSITIONS AND USES THEREOF FOR CRYOPRESERVATION