Inventor
DU QUANGEN
US6 patents
⚠️ This page may combine multiple inventors who share the name “DU QUANGEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
4 patentsUS10502024B2Dec 10, 2019
Systems and techniques for controlling and monitoring downhole operations in a well
SCHLUMBERGER TECHNOLOGY CORP13 citations81
US9863202B2Jan 9, 2018
Propellant energy to operate subsea equipment
SCHLUMBERGER TECHNOLOGY CORP3 citations65
US11274522B2Mar 15, 2022
Systems and techniques for controlling and monitoring downhole operations in a well
SCHLUMBERGER TECHNOLOGY CORP0 citations59
US10808493B2Oct 20, 2020
Packer system having lockable mechanism
SCHLUMBERGER TECHNOLOGY CORP0 citations34