Qingfeng Liu

City:

Qingdao

Country:

China

Published Applications:

Last publication date:

2026-01-29

Top Assignees for applications by Qingfeng Liu

The entities that hold a legal rights for patent applications filed by inventor Liu Qingfeng:

SICHUAN UNIVERSITY 1 Chengdu, China
China University of Petroleum (East China) 1 Qingdao, China
Qingdao University of Science and Technology 1 Qingdao, China

Recent patent applications by Liu Qingfeng

Qingfeng Liu from Qingdao, CN has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2026-01-29

US20260028521A1

Chemistry; metallurgy

Modified Graphite-Coated Soft Particle and Method for Preparing Same, and Profile Control and Water Shutoff Agent and Application Thereof

#2 | 2025-09-09

US19032730

Chemistry; metallurgy

COchemical reaction viscosity-increasing type polymer surfactant for gas channeling control during COflooding in offshore heavy oil reservoirs, preparation method therefor and use thereof

InventorID:

7564559 ⎘