(19)

(11)

EP 3 274 108 A1

(12)

(43) Date of publication: 31.01.2018 Bulletin 2018/05 (21) Application number: 16717731.0 (22) Date of filing: 22.03.2016

(51) International Patent Classification (IPC):  B21D 28/02(2006.01) B26F 1/40(2006.01) G02B 6/36(2006.01) B21D 37/12(2006.01) G02B 6/42(2006.01) (86) International application number: PCT/US2016/023636 (87) International publication number: WO 2016/154229 (29.09.2016 Gazette 2016/39)

(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: MA MD (30) Priority: 22.03.2015 US 201562136601 P 23.04.2015 US 201514695008 15.05.2015 US 201514714211 (71) Applicant: Nanoprecision Products, Inc. El Segundo, CA 90245 (US)	(72) Inventors: VALLANCE, Robert Ryan Newbury Park, CA 91320 (US) LI, Shuhe Pasadena, CA 91107 (US) (74) Representative: Peter, Kenneth William  K. W. Peter & Co. Centre Cottage, Bush House Cottages Edinburgh Technopole Milton Bridge Edinburgh, Midlothian EH26 0BA Edinburgh, Midlothian EH26 0BA (GB)