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(11)

EP 3 891 889 A1

(12)

(43) Date of publication: 13.10.2021 Bulletin 2021/41 (21) Application number: 19892026.6 (22) Date of filing: 02.12.2019

(51) International Patent Classification (IPC):  H03K 3/45(2006.01) H03K 3/00(2006.01) A61N 1/00(2006.01) H03K 3/02(2006.01) (52) Cooperative Patent Classification (CPC): H03K 3/45; H03K 3/02; H03K 3/00; A61N 1/00 (86) International application number: PCT/US2019/063984 (87) International publication number: WO 2020/117662 (11.06.2020 Gazette 2020/24)

(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: 06.12.2018 US 201862776105 P (71) Applicants: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College Baton Rouge, LA 70808 (US) The Phantom Laboratory, Incorporated Salem, New York 12865 (US)

(72) Inventors: PAUL, Dennis New Orleans, Louisiana 70115 (US) GOULD, Harry New Orleans, Louisiana 70130 (US) MALLOZZI, Richard Middleton, Massachusetts 01949 (US) (74) Representative: Richly & Ritschel Patentanwälte PartG mbB  Sattlerweg 20 51429 Bergisch Gladbach 51429 Bergisch Gladbach (DE)