This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignee: Ccteg Chongqing Research Institute. 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:
Years Active: 2026
Title: Jianjun Cao: Inventor in Mining and Coal-Seam Engineering
Introduction
Jianjun Cao is an inventor based in Chongqing, China, whose patent work focuses on mining equipment and technologies for coal-seam pressure relief and permeability improvement. He is associated with CCTEG Chongqing Research Institute and is listed as an inventor on 2 patents.
Latest Patents
Cao’s recent patent work includes the “Rear-Mounted Double-Channel Abrasive Jet Cutting Device.” The invention is designed for coal-seam pressure relief and permeability improvement. It uses separate channels to convey high-pressure water and abrasive material, helping reduce wear to hoses and drilling tools and prevent pressure loss in the water channel. The design aims to improve coal-breaking performance and extend the cutting apparatus’s service life.
Another listed patent is “Mining Hose Connecting Device and Method,” which concerns hose connections for mining applications.
Career Highlights
Cao’s patent portfolio reflects an emphasis on practical mining technologies. His work addresses equipment durability and performance in demanding underground environments.
Collaborations
Cao is associated with CCTEG Chongqing Research Institute. His listed coworkers include Yongjiang Zhang and Lindong Guo.
Conclusion
Jianjun Cao’s inventions focus on mining equipment, including abrasive jet cutting and hose-connection technologies, contributing to engineering solutions for coal-seam operations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile