TREA

Suresh Dharmaraj

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  • Florence, SC, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Elevator door interlock assembly
    • Patent number 11,603,290
    • Issue date Mar 14, 2023
    • Otis Elevator Company
    • Yunyi Wang
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator door interlock assembly
    • Patent number 11,155,444
    • Issue date Oct 26, 2021
    • Otis Elevator Company
    • Yunyi Wang
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator door coupler assembly
    • Patent number 10,322,910
    • Issue date Jun 18, 2019
    • Otis Elevator Company
    • Suresh Dharmaraj
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

  • Information Patent Application

    ELEVATOR DOOR INTERLOCK ASSEMBLY
    • Publication number 20220024725
    • Publication date Jan 27, 2022
    • Otis Elevator Company
    • Yunyi WANG
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    ELEVATOR DOOR INTERLOCK ASSEMBLY
    • Publication number 20190337765
    • Publication date Nov 7, 2019
    • Otis Elevator Company
    • Yunyi WANG
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    ELEVATOR DOOR COUPLER ASSEMBLY
    • Publication number 20170190547
    • Publication date Jul 6, 2017
    • Otis Elevator Company
    • Suresh Dharmaraj
    • B66 - HOISTING LIFTING HAULING