Inventor · disambiguated record
Congwei Liu
Also filed as: LIU CONGWEI
4 granted patents·1 pending application·107 citations·filing 2006–2022
71Inventor score
Files withCHINA NAT PETROLEUM CORP2ROCKWELL AUTOMATION TECH INC2TSINGTAO UNIV OF SCIENCE & TECHNOLOGY1
Top patents by PatentIndex Score
5 records- 0194US7495938B2DC voltage balance control for three-level NPC power converters with even-order harmonic elimination schemeROCKWELL AUTOMATION TECH INC·Filed 2006·Granted Feb 24, 2009·100 cites·19 claims
- 0262US7310254B2AC-to-AC (frequency) converter with three switches per legROCKWELL AUTOMATION TECH INC·Filed 2006·Granted Dec 18, 2007·7 cites·22 claims
- 0353US2024201415A1Method and device for calibrating depth of optical fibre in wellCHINA NAT PETROLEUM CORP·Filed 2022·Application pending·0 cites
- 0443US12188909B2Testing and characterization for initial fatigue damage and development process of vulcanized rubberTSINGTAO UNIV OF SCIENCE & TECHNOLOGY·Filed 2021·Granted Jan 7, 2025·0 cites·7 claims
- 0543US11125898B2Method and system for positioning seismic source in microseism monitoringCHINA NAT PETROLEUM CORP·Filed 2019·Granted Sep 21, 2021·0 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when Congwei 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 →