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EP 4 415 952 A1

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(43) Date of publication: 21.08.2024 Bulletin 2024/34 (21) Application number: 22802370.1 (22) Date of filing: 13.10.2022

(51) International Patent Classification (IPC):  B29C 64/124(2017.01) B29C 64/223(2017.01) B29C 64/295(2017.01) B29C 64/393(2017.01) B33Y 30/00(2015.01) B33Y 50/02(2015.01) B29C 64/214(2017.01) B29C 64/227(2017.01) B29C 64/35(2017.01) B33Y 10/00(2015.01) B33Y 40/00(2020.01) B29C 64/255(2017.01) (52) Cooperative Patent Classification (CPC): B29C 64/223; B29C 64/35; B29C 64/124; B29C 64/214; B29C 64/295; B29C 64/227; B33Y 10/00; B33Y 30/00; B33Y 50/02; B29C 64/393; B33Y 40/00; B29C 64/255 (86) International application number: PCT/US2022/046597 (87) International publication number: WO 2023/064488 (20.04.2023 Gazette 2023/16)

(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: 14.10.2021 US 202163255655 P 18.01.2022 US 202263300512 P 11.10.2022 US 202217963958 11.10.2022 US 202217963963 11.10.2022 US 202217963964 (71) Applicant: Align Technology, Inc. San Jose, CA 95134 (US)

(72) Inventors: MEENAKSHISUNDARAM, Viswanath Santa Clara, CA 95054 (US) DORFINGER, Peter Woodside, CA 94062 (US) CHOUDHARY, Umesh Upendra Scotts Valley, CA 95066 (US) COLE, Michael Christopher San Jose, CA 95164 (US) (74) Representative: Carpmaels & Ransford LLP  One Southampton Row London WC1B 5HA London WC1B 5HA (GB)