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EP 4 405 225 A1

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(43) Date of publication: 31.07.2024 Bulletin 2024/31 (21) Application number: 22869559.9 (22) Date of filing: 16.09.2022

(51) International Patent Classification (IPC):  B61B 13/08(2006.01) F16L 9/18(2006.01) B60L 13/04(2006.01) (52) Cooperative Patent Classification (CPC): Y02T 30/00; B60L 13/04; B61B 13/10 (86) International application number: PCT/IN2022/050829 (87) International publication number: WO 2023/042223 (23.03.2023 Gazette 2023/12)

(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: 20.09.2021 IN 202141042501 (71) Applicant: Indian Institute Of Technology (IIT Madras) Tamil Nadu 600036 (IN)

(72) Inventors: CHAKRAVARTHY, Satyanarayanan Raghuraman Delhi Avenue IIT Madras Campus Chennai 600036 (IN) MURUGANANDAM, Thiruchengode Mahalingam Chennai, 600036 (IN) JAIN, Vibhor Vidisha Madhya Pradesh 464001 (IN) SASISEKARAN, Rajaraman Chennai, 600116 (IN) PATIL, Anurag Pune, 411019 (IN) JAYANT, Dhalpe Abhishek Pune Maharashtra 413102 (IN) RISHITHA, Vemireddy Sri Pradesh 524201 (IN) THAKKAR, Kishan Gujarat 380014 (IN) BALAR, Neel Pradesh 515801 (IN) PATOLE, Siddhant Sagar Pune, 411021 (IN) KABDAL, Lokesh Nainital Uttarakhand 263139 (IN) ANISH, Chokkasamudram Hyderabad, 500039 (IN) BANSAL, Ankit Delhi 110034 (IN) (74) Representative: ZBM Patents - Zea, Barlocci & Markvardsen  Rambla Catalunya, 123 08008 Barcelona 08008 Barcelona (ES)