Inventor
DU ZHIGUO
CN7 patents
⚠️ This page may combine multiple inventors who share the name “DU ZHIGUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHINA PETROLEUM & CHEM CORP
5 patentsUS11215404B2Jan 4, 2022
Heat transfer tube and cracking furnace using the same
CHINA PETROLEUM & CHEM CORP1 citations62
US10209011B2Feb 19, 2019
Heat transfer tube and cracking furnace using the same
CHINA PETROLEUM & CHEM CORP1 citations62
US12123661B2Oct 22, 2024
Heat transfer enhancement pipe as well as cracking furnace and atmospheric and vacuum heating furnace including the same
CHINA PETROLEUM & CHEM CORP0 citations58
US11976891B2May 7, 2024
Heat transfer enhancement pipe as well as cracking furnace and atmospheric and vacuum heating furnace including the same
CHINA PETROLEUM & CHEM CORP0 citations58
US9505677B2Nov 29, 2016
Steam cracking processes
CHINA PETROLEUM & CHEM CORP0 citations41