Inventor

LI GONGRANG

CN4 patents

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

CHINA PETROLEUM & CHEM CORP

2 patents

US12559469B2Feb 24, 2026

Cyclic thioether compound, vegetable oil composition containing the same, their preparation and application thereof

CHINA PETROLEUM & CHEM CORP0 citations59

US12291668B2May 6, 2025

Coated rubber particle, its preparation and application thereof

CHINA PETROLEUM & CHEM CORP0 citations57

UNIV CHINA PETROLEUM EAST CHINA

1 patent

US10647902B1May 12, 2020

Temporary plugging agent for drilling fluid and preparation method thereof, and water-based drilling fluid and use thereof

UNIV CHINA PETROLEUM EAST CHINA14 citations81

SINOPEC OILFIELD SERVICE CORP

1 patent

US9938445B2Apr 10, 2018

Comb polymer, method of preparing the same, and use thereof

SINOPEC OILFIELD SERVICE CORP0 citations30