(19)

(11)

EP 4 551 773 A1

(12)

(43) Date of publication: 14.05.2025 Bulletin 2025/20 (21) Application number: 23861006.7 (22) Date of filing: 29.08.2023

(51) International Patent Classification (IPC):  E04B 1/04(2006.01) E04C 5/07(2006.01) (52) Cooperative Patent Classification (CPC): E04C 5/07 (86) International application number: PCT/TR2023/050886 (87) International publication number: WO 2024/049394 (07.03.2024 Gazette 2024/10)

(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: 31.08.2022 TR 202213570 (71) Applicant: ESKISEHIR TEKNIK UNIVERSITESI 26555 Tepebasi/Eskisehir (TR)	(72) Inventors: KILIC, Murat 26555 Tepebasi/Eskisehir (TR) KAYALAR, Gulsen Yagmur 26555 Tepebasi/Eskisehir (TR) EVIRGEN, Burak 26555 Tepebasi/Eskisehir (TR) TUNABOYU, Onur 26555 Tepebasi/Eskisehir (TR) (74) Representative: Handanoglu, Erdal  Simaj Patent Consulting Limited Mutlukent Mahallesi 1933. Cadde No:8 Çankaya 06810 Ankara 06810 Ankara (TR)