Inventor · disambiguated record
Yongyong Zhan
Also filed as: ZHAN YONGYONG
11 granted patents·4 pending applications·121 citations·filing 2015–2024
89Inventor score
Top patents by PatentIndex Score
15 records- 0198US11713223B2Winch, rope guide and transmission device having clutch functionT MAX HANGZHOU TECH CO LTD·Filed 2020·Granted Aug 1, 2023·7 cites·23 claims
- 0298US11414017B2Vehicle step apparatus and vehicleT MAX HANGZHOU TECH CO LTD·Filed 2020·Granted Aug 16, 2022·14 cites·23 claims
- 0398US9669767B2Vehicle step apparatusT-MAX (HANGZHOU) IND CO LTD·Filed 2015·Granted Jun 6, 2017·56 cites·20 claims
- 0496US10272842B2Running board device and vehicle having the sameT MAX HANGZHOU TECH CO LTD·Filed 2017·Granted Apr 30, 2019·26 cites·8 claims
- 0595US12103828B2Winch, rope guide and transmission device having clutch functionT MAX HANGZHOU TECH CO LTD·Filed 2023·Granted Oct 1, 2024·1 cites·6 claims
- 0695US11198394B2Vehicle running board apparatus and retractable device thereofT MAX HANGZHOU TECH CO LTD·Filed 2019·Granted Dec 14, 2021·13 cites·20 claims
- 0794US12084323B2Winch, rope guide and transmission device having clutch functionT MAX HANGZHOU TECH CO LTD·Filed 2023·Granted Sep 10, 2024·1 cites·5 claims
- 0891US11702012B2Vehicle running board apparatus and retractable device thereofT MAX HANGZHOU TECH CO LTD·Filed 2021·Granted Jul 18, 2023·2 cites·20 claims
- 0981US12410824B2Hydraulic oil-circuit system and hydraulic jackT MAX HANGZHOU TECH CO LTD·Filed 2022·Granted Sep 9, 2025·1 cites·18 claims
- 1063US2025327502A1Piston assembly and magnetorheological damper, vehicleT MAX HANGZHOU TECH CO LTD·Filed 2024·Application pending·0 cites
- 1159US2025121776A1Step deviceT MAX HANGZHOU TECH CO LTD·Filed 2024·Application pending·0 cites
- 1259US2025249833A1Electric step with locking functionT MAX HANGZHOU TECH CO LTD·Filed 2024·Application pending·0 cites
- 1355US11376918B2Adjustment device, adjustor and shock absorberT MAX HANGZHOU TECH CO LTD·Filed 2020·Granted Jul 5, 2022·0 cites·20 claims
- 1454US2025128662A1Step, step device and vehicleT MAX HANGZHOU TECH CO LTD·Filed 2023·Application pending·0 cites
- 1532USD1079184SHydraulic jackT MAX HANGZHOU TECH CO LTD·Filed 2021·Granted Jun 10, 2025·0 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when Yongyong Zhan files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →