Inventor

LIU YUZHANG

CN3 patents

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

PETROCHINA CO LTD

2 patents

US7867952B2Jan 11, 2011

Flexible polymer, particles prepared therefrom and process for preparing the same

PETROCHINA CO LTD0 citations46

US7304116B2Dec 4, 2007

Braided comb-shaped salt-resistant polymer thickening agent

PETROCHINA CO LTD1 citations42

LUO JIANHUI

1 patent

US8822389B2Sep 2, 2014

Dendritic comb-shaped polymer thickening agent, preparaton of the same and application thereof

LUO JIANHUI0 citations30