(19)

(11)

EP 3 990 623 A1

(12)

(43) Date of publication: 04.05.2022 Bulletin 2022/18 (21) Application number: 20735384.8 (22) Date of filing: 29.06.2020

(51) International Patent Classification (IPC):  C12N 5/071(2010.01) C12N 5/077(2010.01) C12N 5/00(2006.01) (52) Cooperative Patent Classification (CPC): C12N 5/0698; C12N 2502/092; C12N 2502/094; C12N 2502/1323; C12N 2513/00; C12N 2533/54; B33Y 80/00 (86) International application number: PCT/EP2020/068300 (87) International publication number: WO 2020/260714 (30.12.2020 Gazette 2020/53)

(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: 27.06.2019 US 201962867364 P (71) Applicant: Kunz, Helmuth, Heinrich South Beaconsfield HP9 1EX (GB)	(72) Inventor: Kunz, Helmuth, Heinrich South Beaconsfield HP9 1EX (GB) (74) Representative: Potter Clarkson  The Belgrave Centre Talbot Street Nottingham NG1 5GG Nottingham NG1 5GG (GB)