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EP 3 436 680 A1

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(43) Date of publication: 06.02.2019 Bulletin 2019/06 (21) Application number: 16717510.8 (22) Date of filing: 31.03.2016

(51) International Patent Classification (IPC):  F02D 41/14(2006.01) F01B 11/00(2006.01) H02P 25/06(2016.01) F02B 71/00(2006.01) F02D 39/10(2006.01) F02G 1/043(2006.01) (86) International application number: PCT/US2016/025417 (87) International publication number: WO 2017/171816 (05.10.2017 Gazette 2017/40)

(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 (71) Applicant: Etagen, Inc. Menlo Park, CA 94025 (US)	(72) Inventors: ROELLE, Matthew Belmont, California 94002 (US) GADDA, Christopher Palo Alto, California 94301 (US) (74) Representative: Pisani, Diana Jean et al Haley Guiliano International LLP Central Court 25 Southampton Buildings London WC2A 1AL London WC2A 1AL (GB)