(19)

(11)

EP 3 840 911 A2

(12)

(88) Date of publication A3: 09.04.2020 (43) Date of publication: 30.06.2021 Bulletin 2021/26 (21) Application number: 19851630.4 (22) Date of filing: 24.08.2019

(51) International Patent Classification (IPC):  B23K 26/342(2014.01) B33Y 30/00(2015.01) B33Y 10/00(2015.01) (86) International application number: PCT/US2019/048049 (87) International publication number: WO 2020/041786 (27.02.2020 Gazette 2020/09)

(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: 24.08.2018 US 201862722198 P 01.09.2018 US 201862726233 P (71) Applicant: Nuburu, Inc. Centennial, CO 80112 (US)	(72) Inventors: ZEDIKER, Mark, S. Castle Rock, CO 80104 (US) LEE, Ian Highlands Ranch, CO 80126 (US) PELAPRAT, Jean, Michel Saratoga, CA 95070 (US) MATHEW, Finuf Castle Rock, CO 80108 (US) BOESE, Eric Centennial, CO 80112 (US) (74) Representative: btb IP Bungartz Baltzer Partnerschaft mbB Patentanwälte  Im Mediapark 6A 50670 Köln 50670 Köln (DE)