Inventor
LI YINGCHENG
CN15 patents
⚠️ This page may combine multiple inventors who share the name “LI YINGCHENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHINA PETROLEUM & CHEM CORP
12 patentsUS12037541B2Jul 16, 2024
Anionic-cationic-nonionic surfactant, production and use thereof
CHINA PETROLEUM & CHEM CORP0 citations60
US11286416B2Mar 29, 2022
Surfactant composition and preparation method therefor and application thereof
CHINA PETROLEUM & CHEM CORP0 citations60
US11193055B2Dec 7, 2021
Surfactant composition and preparation method therefor and application thereof
CHINA PETROLEUM & CHEM CORP0 citations60
US11186764B2Nov 30, 2021
Anionic-cationic-nonionic surfactant, production and use thereof
CHINA PETROLEUM & CHEM CORP0 citations60
US11920083B2Mar 5, 2024
Surfactant composition, and manufacturing method and application of same
CHINA PETROLEUM & CHEM CORP0 citations59
US11578253B2Feb 14, 2023
Surfactant composition, and manufacturing method and application of same
CHINA PETROLEUM & CHEM CORP0 citations59
US10526528B2Jan 7, 2020
Surfactant composition and preparation method therefor and application thereof
CHINA PETROLEUM & CHEM CORP0 citations50
US10400156B2Sep 3, 2019
Anionic-cationic-nonionic surfactant, production and use thereof
CHINA PETROLEUM & CHEM CORP0 citations50
US12344795B2Jul 1, 2025
Biological and chemical composite blockage removing agent and preparation process and use thereof
CHINA PETROLEUM & CHEM CORP0 citations47
US12180419B2Dec 31, 2024
Alkylaniline polyether benzenesulfonate and process of producing same
CHINA PETROLEUM & CHEM CORP0 citations47
US10723936B2Jul 28, 2020
Surfactant composition, and manufacturing method and application of same
CHINA PETROLEUM & CHEM CORP0 citations46
US12331246B2Jun 17, 2025
Polyacrylamide-based symmetric branched polymer surfactant and a process for preparing the same and use thereof
CHINA PETROLEUM & CHEM CORP0 citations44