(19)

(11)

EP 4 096 569 A1

(12)

(43) Date of publication: 07.12.2022 Bulletin 2022/49 (21) Application number: 21748002.9 (22) Date of filing: 29.01.2021

(51) International Patent Classification (IPC):  A61C 13/00(2006.01) (52) Cooperative Patent Classification (CPC): A61C 13/34; A61C 13/0004 (86) International application number: PCT/US2021/015820 (87) International publication number: WO 2021/155230 (05.08.2021 Gazette 2021/31)

(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: 31.01.2020 US 202016778406 04.01.2021 US 202117140739 (71) Applicant: James R. Glidewell Dental Ceramics, Inc. Newport Beach, CA 92660 (US)	(72) Inventors: AZEMIKOV, Sergei Irvine, California 92604 (US) CHELNOKOV, Fedor Khimki, 141401 (RU) TOLSTOV, Andrey Moscow, 119620 (RU) NIKOLSKIY, Sergey Columbia, Tennessee 38401 (US) (74) Representative: WP Thompson  8th Floor 1 Mann Island Liverpool L3 1BP Liverpool L3 1BP (GB)