Inventor · disambiguated record
Zengkai Liu
Also filed as: LIU ZENGKAI
5 granted patents·364 citations·filing 2019–2020
81Inventor score
Top patents by PatentIndex Score
5 records- 0195US11346200B2Method and system for guaranteeing safety of offshore oil well control equipmentUNIV CHINA PETROLEUM EAST CHINA·Filed 2019·Granted May 31, 2022·104 cites·7 claims
- 0295US11243509B2Method for assessing safety integrity level of offshore oil well control equipmentUNIV CHINA PETROLEUM EAST CHINA·Filed 2019·Granted Feb 8, 2022·115 cites·3 claims
- 0395US10989019B2Fully-electrically driven downhole safety valveUNIV CHINA PETROLEUM EAST CHINA·Filed 2019·Granted Apr 27, 2021·145 cites·5 claims
- 0448US11459887B2System for navigation detection and inclination measurement of advanced hydraulic supportsUNIV SHANDONG SCIENCE & TECH·Filed 2020·Granted Oct 4, 2022·0 cites·8 claims
- 0545US11922335B2Method and system for evaluating macro resilience of offshore oil well control equipmentUNIV CHINA PETROLEUM EAST CHINA·Filed 2019·Granted Mar 5, 2024·0 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when Zengkai Liu 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 →