This inventor holds 1 USPTO granted patent. Top assignees: Changqing Engineering Design Co., Ltd., China National Petroleum Corporation. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 1 
1 out of 95 
Years Active: 2026
Title: Chunjiang Cui and Helium Gas Purification
Introduction
Chunjiang Cui is an inventor associated with Inner Mongolia, China. His patent work addresses the purification of helium from natural gas through a sequence of gas-liquid separation and distillation processes.
Latest Patents
Cui is associated with 1 patent: “System for Purifying Helium Gas, Method, and Application.” The invention describes a system comprising a first gas-liquid separation device, a primary helium extraction tower, a second gas-liquid separation device, a secondary helium extraction tower, and a nitrogen removal tower, connected in sequence.
The first separation device treats helium-containing natural gas to produce gas and liquid phases. The primary extraction tower distills these phases, producing a second set of gas and liquid phases. A second separation device then processes the gas phase, and the secondary extraction tower distills the resulting phases to obtain crude helium and a liquid phase. The nitrogen removal tower removes nitrogen from that liquid phase.
Career Highlights
Cui is associated with Changqing Engineering Design Co., Ltd. and China National Petroleum Corporation. His patent reflects work on a staged process for recovering and purifying helium from natural gas.
Collaborations
Cui’s listed coworkers include Zibing Liu and Peng Qiu.
Conclusion
Chunjiang Cui’s patent focuses on an integrated approach to helium recovery, combining gas-liquid separation, distillation, and nitrogen removal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile