Inventor · disambiguated record
Qingxi Cai
Also filed as: CAI QINGXI
10 granted patents·1 pending application·9 citations·filing 2014–2024
82Inventor score
Files withOTIS ELEVATOR CO9STATE GRID TAIZHOU POWER SUPPLY COMPANY1STATE GRID ZHEJIANG ELECTRIC POWER CO LTD TAIZHOU POWER SUPPLY COMPANY1
Top patents by PatentIndex Score
11 records- 0182US10189680B2Landing-door door lock deviceOTIS ELEVATOR CO·Filed 2015·Granted Jan 29, 2019·3 cites·6 claims
- 0266US10427914B2Elevator synchronous door knifeOTIS ELEVATOR CO·Filed 2016·Granted Oct 1, 2019·1 cites·10 claims
- 0360US10865074B2Handrail automatically tensioning system and a method for adjusting tension level of handrailOTIS ELEVATOR CO·Filed 2019·Granted Dec 15, 2020·0 cites·20 claims
- 0456USD1039409SEscalator smart traffic flow lighting deviceOTIS ELEVATOR CO·Filed 2019·Granted Aug 20, 2024·4 cites·1 claims
- 0548USD1096943SEscalator smart traffic flow lighting deviceOTIS ELEVATOR CO·Filed 2024·Granted Oct 7, 2025·0 cites·1 claims
- 0648USD1096942SEscalator smart traffic flow lighting deviceOTIS ELEVATOR CO·Filed 2024·Granted Oct 7, 2025·0 cites·1 claims
- 0748USD1096941SEscalator smart traffic flow lighting deviceOTIS ELEVATOR CO·Filed 2024·Granted Oct 7, 2025·0 cites·1 claims
- 0848USD1096474SEscalator smart traffic flow lighting deviceOTIS ELEVATOR CO·Filed 2024·Granted Oct 7, 2025·0 cites·1 claims
- 0946US10040669B2Asynchronous door knife of elevator integrated car door lockOTIS ELEVATOR CO·Filed 2014·Granted Aug 7, 2018·1 cites·10 claims
- 1037US11831165B2Hierarchical control method for island power grid energy storage system for increasing new energy generation fluctuationSTATE GRID ZHEJIANG ELECTRIC POWER CO LTD TAIZHOU POWER SUPPLY COMPANY·Filed 2020·Granted Nov 28, 2023·0 cites·8 claims
- 1135US2023208307A1Frequency conversion power transmission systemSTATE GRID TAIZHOU POWER SUPPLY COMPANY·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →