Inventor
DU XINFA
CN31 patents
⚠️ This page may combine multiple inventors who share the name “DU XINFA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
T MAX HANGZHOU TECH CO LTD
27 patentsUS10618472B2Apr 14, 2020
Vehicle and vehicle step apparatus with multiple drive motors
T MAX HANGZHOU TECH CO LTD45 citations98
US10384614B1Aug 20, 2019
Vehicle, running board assembly and drive assembly for running board
T MAX HANGZHOU TECH CO LTD43 citations97
US11021108B2Jun 1, 2021
Vehicle and vehicle step apparatus with multiple drive motors
T MAX HANGZHOU TECH CO LTD16 citations94
US10682960B2Jun 16, 2020
Vehicle, running board assembly and drive assembly for running board
T MAX HANGZHOU TECH CO LTD20 citations94
US10272842B2Apr 30, 2019
Running board device and vehicle having the same
T MAX HANGZHOU TECH CO LTD26 citations94
US10124735B2Nov 13, 2018
Vehicle and vehicle step apparatus
T MAX HANGZHOU TECH CO LTD24 citations94
US11208043B2Dec 28, 2021
Vehicle and vehicle step apparatus with multiple drive motors
T MAX HANGZHOU TECH CO LTD9 citations86
US10821904B2Nov 3, 2020
Vehicle and running board device for vehicle
T MAX HANGZHOU TECH CO LTD18 citations86
US11713223B2Aug 1, 2023
Winch, rope guide and transmission device having clutch function
T MAX HANGZHOU TECH CO LTD7 citations85
US11414017B2Aug 16, 2022
Vehicle step apparatus and vehicle
T MAX HANGZHOU TECH CO LTD14 citations85
US11318889B2May 3, 2022
Vehicle, running board assembly and drive assembly for running board
T MAX HANGZHOU TECH CO LTD9 citations85
US11292390B2Apr 5, 2022
Vehicle, running board assembly and drive assembly for running board
T MAX HANGZHOU TECH CO LTD9 citations85
US11198394B2Dec 14, 2021
Vehicle running board apparatus and retractable device thereof
T MAX HANGZHOU TECH CO LTD13 citations85
US10479278B2Nov 19, 2019
Vehicle and vehicle step apparatus
T MAX HANGZHOU TECH CO LTD9 citations84
US11702012B2Jul 18, 2023
Vehicle running board apparatus and retractable device thereof
T MAX HANGZHOU TECH CO LTD2 citations73
US11577654B2Feb 14, 2023
Vehicle, running board assembly and drive assembly for running board
T MAX HANGZHOU TECH CO LTD1 citations73
US11881063B2Jan 23, 2024
Management apparatus for a vehicle device, vehicle and server
T MAX HANGZHOU TECH CO LTD2 citations64
US12115940B2Oct 15, 2024
Vehicle and vehicle step apparatus with multiple drive motors
T MAX HANGZHOU TECH CO LTD0 citations62
US12103828B2Oct 1, 2024
Winch, rope guide and transmission device having clutch function
T MAX HANGZHOU TECH CO LTD1 citations62
US12084323B2Sep 10, 2024
Winch, rope guide and transmission device having clutch function
T MAX HANGZHOU TECH CO LTD1 citations62
US12017614B2Jun 25, 2024
Vehicle, running board assembly and drive assembly for running board
T MAX HANGZHOU TECH CO LTD0 citations62
US11584387B2Feb 21, 2023
Step apparatus for vehicle and vehicle
T MAX HANGZHOU TECH CO LTD1 citations62
US11505128B2Nov 22, 2022
Foot step for vehicle and vehicle
T MAX HANGZHOU TECH CO LTD1 citations62
US12410824B2Sep 9, 2025
Hydraulic oil-circuit system and hydraulic jack
T MAX HANGZHOU TECH CO LTD1 citations60
US12304430B2May 20, 2025
Electric step device and vehicle having same
T MAX HANGZHOU TECH CO LTD0 citations52
US12083994B2Sep 10, 2024
Step mounting mechanism and motorized device
T MAX HANGZHOU TECH CO LTD0 citations52
US11376918B2Jul 5, 2022
Adjustment device, adjustor and shock absorber
T MAX HANGZHOU TECH CO LTD0 citations52
T-MAX (HANGZHOU) IND CO LTD
4 patentsUS9688205B2Jun 27, 2017
Vehicle step apparatus and motor assembly thereof
T-MAX (HANGZHOU) IND CO LTD57 citations94
US9669766B2Jun 6, 2017
Vehicle and vehicle step apparatus
T-MAX (HANGZHOU) IND CO LTD48 citations94
US9656609B2May 23, 2017
Vehicle step apparatus and motor assembly thereof
T-MAX (HANGZHOU) IND CO LTD52 citations94
US9669767B2Jun 6, 2017
Vehicle step apparatus
T-MAX (HANGZHOU) IND CO LTD56 citations93