(19)

(11)

EP 4 167 730 A1

(12)

(43) Date of publication: 26.04.2023 Bulletin 2023/17 (21) Application number: 21826469.5 (22) Date of filing: 21.06.2021

(51) International Patent Classification (IPC):  A01K 61/65(2017.01) A01K 61/60(2017.01) (52) Cooperative Patent Classification (CPC): A01K 61/60; A01K 61/65; Y02A 40/81 (86) International application number: PCT/IB2021/055453 (87) International publication number: WO 2021/255714 (23.12.2021 Gazette 2021/51)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 19.06.2020 NZ 20765556 (71) Applicant: The Cawthron Institute Trust Board Nelson (NZ)	(72) Inventor: HEASMAN, Kevin Nelson, 7010 (NZ) (74) Representative: Ribeiro, James Michael  Withers & Rogers LLP 2 London Bridge London SE1 9RA London SE1 9RA (GB)