Inventor

YANG ZHENGMING

CN3 patents

⚠️ This page may combine multiple inventors who share the name “YANG ZHENGMING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PETROCHINA CO LTD

2 patents

US10422733B2Sep 24, 2019

Method and device for testing wettability of dense oil reservoir

PETROCHINA CO LTD3 citations68

US10107056B2Oct 23, 2018

Core holding system

PETROCHINA CO LTD6 citations65

CHAI GUOSHENG

1 patent

US7550926B2Jun 23, 2009

Highstrength discharge lamp with low glare and high efficiency for vehicles

CHAI GUOSHENG0 citations22