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EP 4 577 673 A1

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(43) Date of publication: 02.07.2025 Bulletin 2025/27 (21) Application number: 23857831.4 (22) Date of filing: 15.08.2023

(51) International Patent Classification (IPC):  C12Q 1/6888(2018.01) C12N 15/09(2006.01) (52) Cooperative Patent Classification (CPC): C12Q 1/6895; C12Q 2600/16 (86) International application number: PCT/SG2023/050556 (87) International publication number: WO 2024/043830 (29.02.2024 Gazette 2024/09)

(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: 26.08.2022 SG 10202250839C (71) Applicant: Denka Company Limited Tokyo 103-8338 (JP)	(72) Inventors: ZHENG, Dahai Singapore 138567 (SG) BARNWAL, Bhaskar Singapore 138567 (SG) LI, Hankun Singapore 138567 (SG) ABDUL MALIK, Najib bin Singapore 138567 (SG) TAN, Chloe Kah Min Singapore 138567 (SG) (74) Representative: Viering, Jentschura & Partner mbB Patent- und Rechtsanwälte  Am Brauhaus 8 01099 Dresden 01099 Dresden (DE)