(19)

(11)

EP 4 288 212 A1

(12)

(43) Date of publication: 13.12.2023 Bulletin 2023/50 (21) Application number: 22750474.3 (22) Date of filing: 04.02.2022

(51) International Patent Classification (IPC):  B01L 3/02(2006.01) G01F 1/002(2022.01) G01F 1/76(2006.01) G01F 15/02(2006.01) C07K 14/765(2006.01) G01F 1/74(2006.01) G01F 1/86(2006.01) (52) Cooperative Patent Classification (CPC): A43B 13/187; A43B 23/26; A43B 23/028; B29D 35/0009; B29D 35/0054; B29D 35/02; B29D 35/061; B29D 35/065; B29D 35/12; B29D 35/14; A43B 13/12; A43B 13/127; A43B 3/107 (86) International application number: PCT/US2022/015331 (87) International publication number: WO 2022/170109 (11.08.2022 Gazette 2022/32)

(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: 04.02.2021 US 202163145939 P 01.11.2021 US 202163274443 P 07.01.2022 US 202263297569 P (71) Applicant: Natural Fiber Welding, Inc. Peoria, IL 61614 (US)	(72) Inventors: AMSTUTZ, Aaron, Kenneth Peoria, IL 61604 (US) HAVERHALS, Luke, Michael Peoria, IL 61614 (US) AMSTUTZ, Isaiah Canton, IL 61520 (US) CLEMENT, Skylar Peoria, IL 61611 (US) LI, Shang-Min Peoria, IL 61615 (US) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)