(19)

(11)

EP 4 770 481 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24860857.2 (22) Date of filing: 26.08.2024

(51) International Patent Classification (IPC):  A43B 13/26(2006.01) A43C 15/16(2006.01) (52) Cooperative Patent Classification (CPC): A43C 15/16; A43B 13/223; A43B 13/141; A43B 3/0042 (86) International application number: PCT/US2024/043932 (87) International publication number: WO 2025/049414 (06.03.2025 Gazette 2025/10)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 28.08.2023 US 202363629957 P (71) Applicant: Barnes, Brooks The Woodlands, TX 77382 (US)	(72) Inventor: Barnes, Brooks The Woodlands, TX 77382 (US) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)