(19)

(11)

EP 4 077 796 A1

(12)

(43) Date of publication: 26.10.2022 Bulletin 2022/43 (21) Application number: 20903730.8 (22) Date of filing: 14.12.2020

(51) International Patent Classification (IPC):  D06P 1/52(2006.01) (52) Cooperative Patent Classification (CPC): D06P 1/004; D06P 1/5242; D06P 1/67341; D06P 1/6533 (86) International application number: PCT/TR2020/051295 (87) International publication number: WO 2021/126125 (24.06.2021 Gazette 2021/25)

(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: 17.12.2019 TR 201920534 (71) Applicant: ESKISEHIR TEKNIK UNIVERSITESI Eskisehir (TR)	(72) Inventors: CIVAN, Lale Eski ehir (TR) KURAMA, Semra Tepeba i/Eski ehir (TR) (74) Representative: Handanoglu, Erdal  Simaj Patent Consulting Limited Mutlukent Mahallesi 1933. Cadde No:8 Çankaya 06810 Ankara 06810 Ankara (TR)