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EP 4 539 776 A1

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(43) Date of publication: 23.04.2025 Bulletin 2025/17 (21) Application number: 23771983.6 (22) Date of filing: 15.06.2023

(51) International Patent Classification (IPC):  A61C 17/22(2006.01) A61C 19/06(2006.01) A61C 17/20(2006.01) (52) Cooperative Patent Classification (CPC): A61C 17/228; A61C 19/066; A61N 2005/0606; A61C 17/221; A46B 9/045; A46B 5/0095; A46B 13/023; A46B 15/0006; A46B 15/003; A46B 15/0034; A46B 2200/1066 (86) International application number: PCT/US2023/025406 (87) International publication number: WO 2023/244725 (21.12.2023 Gazette 2023/51)

(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: KH MA MD TN (30) Priority: 16.06.2022 US 202217842770 (71) Applicant: Zerobrush, Inc. 1896 San Diego, CA 92130 (US)

(72) Inventors: PAI, Nidhi San Diego, CA 92130 (US) PAI, Akash San Diego, CA 92130 (US) THIELMAN, Scott, C. San Diego, CA 92130 (US) SADDER, Juan, F. San Diego, CA 92130 (US) TAYLOR, Richard, K. San Diego, CA 92130 (US) ADAM, Ralf, E. San Diego, CA 92130 (US) BIESBROCK, Aaron, Reed San Diego, CA 92130 (US) FINDLEY, Molly San Diego, CA 92130 (US) SAGEL, Paul, Albert San Diego, CA 92130 (US) (74) Representative: Eisenführ Speiser  Patentanwälte Rechtsanwälte PartGmbB Johannes-Brahms-Platz 1 20355 Hamburg 20355 Hamburg (DE)