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(11)

EP 4 522 801 A1

(12)

(43) Date of publication: 19.03.2025 Bulletin 2025/12 (21) Application number: 23804300.4 (22) Date of filing: 12.05.2023

(51) International Patent Classification (IPC):  D21H 19/80(2006.01) D21H 19/44(2006.01) D21H 19/54(2006.01) D21H 19/82(2006.01) (52) Cooperative Patent Classification (CPC): D21H 19/54; D21H 11/18; D21H 11/12; D21H 27/10 (86) International application number: PCT/US2023/021984 (87) International publication number: WO 2023/220337 (16.11.2023 Gazette 2023/46)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 12.05.2022 US 202263364613 P (71) Applicants: WM. Wrigley Jr. Company Chicago, IL 60642 (US) North Carolina State University Raleigh, North Carolina 27606 (US)

(72) Inventors: PAL, Lokendra Raleigh, North Carolina 27606 (US) TYAGI, Preeti Chicago, Illinois 60642 (US) LISSON, Norman Chicago, Illinois 60642 (US) DEBNATH, Mrittika Raleigh, North Carolina 27606 (US) SARDER, Roman Raleigh, North Carolina 27606 (US) (74) Representative: Haseltine Lake Kempner LLP  One Portwall Square Portwall Lane Bristol BS1 6BH Bristol BS1 6BH (GB)