Inventor
ZHAN YONGYONG
CN11 patents
⚠️ This page may combine multiple inventors who share the name “ZHAN YONGYONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
T MAX HANGZHOU TECH CO LTD
10 patentsUS10272842B2Apr 30, 2019
Running board device and vehicle having the same
T MAX HANGZHOU TECH CO LTD26 citations94
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
US11198394B2Dec 14, 2021
Vehicle running board apparatus and retractable device thereof
T MAX HANGZHOU TECH CO LTD13 citations85
US11702012B2Jul 18, 2023
Vehicle running board apparatus and retractable device thereof
T MAX HANGZHOU TECH CO LTD2 citations73
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
US12410824B2Sep 9, 2025
Hydraulic oil-circuit system and hydraulic jack
T MAX HANGZHOU TECH CO LTD1 citations60
USD1079184SJun 10, 2025
Hydraulic jack
T MAX HANGZHOU TECH CO LTD0 citations56
US11376918B2Jul 5, 2022
Adjustment device, adjustor and shock absorber
T MAX HANGZHOU TECH CO LTD0 citations52