(19)

(11)

EP 4 175 874 A1

(12)

(43) Date of publication: 10.05.2023 Bulletin 2023/19 (21) Application number: 22777345.4 (22) Date of filing: 13.09.2022

(51) International Patent Classification (IPC):  B63B 1/24(2020.01) B63B 32/64(2020.01) B63B 32/10(2020.01) B63B 1/26(2006.01) B63B 32/66(2020.01) B63H 21/17(2006.01) (52) Cooperative Patent Classification (CPC): B63B 1/26; B63B 1/242; B63B 32/64; B63B 32/66; B63B 1/246; B63B 32/10; B63H 21/17 (86) International application number: PCT/IB2022/058612 (87) International publication number: WO 2023/047246 (30.03.2023 Gazette 2023/13)

(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: 03.11.2021 EP 21472011 (71) Applicant: Sifly Ltd. 1113 Sofia (BG)	(72) Inventor: Velev, Ivaylo 1113 Sofia (BG) (74) Representative: Benatov, Samuil Gabriel  Dr. EMIL BENATOV & PARTNERS 6, Asen Peykov Str. 1113 Sofia 1113 Sofia (BG)