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EP 4 081 266 A1

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(43) Date of publication: 02.11.2022 Bulletin 2022/44 (21) Application number: 20929928.8 (22) Date of filing: 28.11.2020

(51) International Patent Classification (IPC):  A61L 2/24(2006.01) B25J 9/00(2006.01) B25J 9/16(2006.01) (52) Cooperative Patent Classification (CPC): B25J 11/0085; B25J 9/1697; B25J 9/1679; A61L 2/208; A61L 2/186; A61L 2/22; A61L 2202/11; A61L 2202/15; A61L 2202/16; A61L 2202/14 (86) International application number: PCT/US2020/070826 (87) International publication number: WO 2021/206772 (14.10.2021 Gazette 2021/41)

(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: 09.04.2020 HK 32020005636 (71) Applicants: Chan, Johnny, Yat Ming Central Hong Kong, S.a.r. (CN) Ho, Wai, Hong Central Hong Kong, S. A. R. (CN) Lau, Johnson Yiu-Nam Houston TX 77057 (US)

(72) Inventors: Chan, Johnny, Yat Ming Central Hong Kong, S.a.r. (CN) Ho, Wai, Hong Central Hong Kong, S. A. R. (CN) Lau, Johnson Yiu-Nam Houston TX 77057 (US) (74) Representative: Forresters IP LLP  Skygarden Erika-Mann-Straße 11 80636 München 80636 München (DE)