Inventor · disambiguated record
Defu Liu
Also filed as: LIU DEFU
17 granted patents·3 pending applications·55 citations·filing 2013–2025
90Inventor score
Files withLINHAI GUOKANG LEISURE PRODUCTS CO LTD7UBTECH ROBOTICS CORP5UBTECH ROBOTICS CORP LTD3LINHAI BAOCHENG CRAFTS CO LTD1MIRACLL CHEMICALS CO LTD1
Top patents by PatentIndex Score
20 records- 0193US10100969B1Movable sunshade baseLINHAI BAOCHENG CRAFTS CO LTD·Filed 2017·Granted Oct 16, 2018·27 cites·9 claims
- 0289US11214162B2Charging module and robot having the sameUBTECH ROBOTICS CORP LTD·Filed 2020·Granted Jan 4, 2022·3 cites·15 claims
- 0381US11412821B2Straight-pole sun umbrella hand-cranking structureLINHAI GUOKANG LEISURE PRODUCTS CO LTD·Filed 2020·Granted Aug 16, 2022·2 cites·2 claims
- 0481USD954120SRobotUBTECH ROBOTICS CORP LTD·Filed 2021·Granted Jun 7, 2022·9 cites·1 claims
- 0581US11317688B2Straight-pole sun umbrella hand-cranking deviceLINHAI GUOKANG LEISURE PRODUCTS CO LTD·Filed 2020·Granted May 3, 2022·2 cites·4 claims
- 0676USD1061008SSunshade armrest shellLINHAI GUOKANG LEISURE PRODUCTS CO LTD·Filed 2023·Granted Feb 11, 2025·5 cites·1 claims
- 0768US10774908B2Robot and head thereofUBTECH ROBOTICS CORP·Filed 2019·Granted Sep 15, 2020·1 cites·10 claims
- 0866US10836032B2Robot and leg assembly thereofUBTECH ROBOTICS CORP·Filed 2019·Granted Nov 17, 2020·1 cites·18 claims
- 0965US10773395B2Robot and arm assembly thereofUBTECH ROBOTICS CORP·Filed 2019·Granted Sep 15, 2020·1 cites·19 claims
- 1062USD1061007SUmbrella skeletonLINHAI GUOKANG LEISURE PRODUCTS CO LTD·Filed 2023·Granted Feb 11, 2025·2 cites·1 claims
- 1160USD989146SRobotUBTECH ROBOTICS CORP LTD·Filed 2022·Granted Jun 13, 2023·2 cites·1 claims
- 1260US2025386910A1Cantilever umbrellaLINHAI GUOKANG LEISURE PRODUCTS CO LTD·Filed 2025·Application pending·0 cites
- 1354US10927931B2Robot and arm assembly thereofUBTECH ROBOTICS CORP·Filed 2019·Granted Feb 23, 2021·0 cites·11 claims
- 1454US2024398077A1Sun umbrella rodLINHAI GUOKANG LEISURE PRODUCTS CO LTD·Filed 2023·Application pending·0 cites
- 1552US10888993B2Assembly for driving waist of robot and robot having the sameUBTECH ROBOTICS CORP·Filed 2019·Granted Jan 12, 2021·0 cites·9 claims
- 1651US11643498B2Thermoplastic silicone-polyurethane elastomer and method for preparing the sameMIRACLL CHEMICALS CO LTD·Filed 2017·Granted May 9, 2023·0 cites·6 claims
- 1742US9357761B2Viscous fish egg killing deviceUNIV CHINA THREE GORGES CTGU·Filed 2013·Granted Jun 7, 2016·0 cites·5 claims
- 1841US2018143941A1Method of solving stress based on force boundary and balance conditionUNIV HUBEI TECHNOLOGY·Filed 2017·Application pending·0 cites
- 1937US12039915B2Display drive circuit and method, LED display board and display deviceXIAN TIBORS ELECTRONIC TECH CO LTD·Filed 2020·Granted Jul 16, 2024·0 cites·19 claims
- 2035USD1085691SSunshade umbrella poleLINHAI GUOKANG LEISURE PRODUCTS CO LTD·Filed 2023·Granted Jul 29, 2025·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →