(19)

(11)

EP 4 115 002 A1

(12)

(43) Date of publication: 11.01.2023 Bulletin 2023/02 (21) Application number: 21719748.2 (22) Date of filing: 04.03.2021

(51) International Patent Classification (IPC):  C25B 1/02(2006.01) C25B 1/24(2021.01) C01B 17/74(2006.01) C25B 15/08(2006.01) (52) Cooperative Patent Classification (CPC): C25B 1/02; C25B 1/24; C25B 15/081; C01B 17/74; C01B 17/02 (86) International application number: PCT/UA2021/000022 (87) International publication number: WO 2021/177931 (10.09.2021 Gazette 2021/36)

(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: 04.03.2020 UA 202001529 (71) Applicant: Podolskyi, Anton Kyiv 04070 (UA)	(72) Inventor: Podolskyi, Anton Kyiv 04070 (UA) (74) Representative: Batakliev, Dimitar  14, Saborna Street, floor 3, office 6 1000 Sofia 1000 Sofia (BG)