This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignees: Guiihou Yihe Mining Co., Ltd., Guizhou University, Guizhou Yihe Technology Co., Ltd.. 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 21 
1 out of 1 Years Active: 2026
Title: Yunfeng Liu: Inventor in Coal-Rock Recognition
Introduction
Yunfeng Liu is an inventor associated with Guiyang City, China. His patent work includes a method for recognizing coal and rock during drilling.
Latest Patents
Liu is associated with 1 patent, titled “Method for Coal Rock Recognition.” The disclosed device is designed to identify coal and rock while drilling. It includes an elemental analyzer mounted on a drill pipe and connected by a data cable to a monitoring panel. Inside the analyzer, a circuit board carries a processor, while a detection head on the analyzer’s side wall includes a detector and an X-ray tube.
Career Highlights
Liu’s listed organizational affiliations include Guizhou University and Guizhou Yihe Technology Co., Ltd. His patent describes equipment intended to support coal-rock recognition during drilling operations.
Collaborations
Liu’s listed coworkers include Yiping Zhang and Genyi Long.
Conclusion
Yunfeng Liu’s patent focuses on a drilling-mounted analyzer that uses detection components and data monitoring to distinguish coal from rock.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile