Inventor

ZHANG CHANGLONG

CN2 patents

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

UNIV CHINA PETROLEUM EAST CHINA

1 patent

US12449339B2Oct 21, 2025

Device and method for testing gas loss amount which simulates wireline coring process

UNIV CHINA PETROLEUM EAST CHINA0 citations40

GUILIN BAIRUI OPTOELECTRONICS TECH CO LTD

1 patent

US12321080B2Jun 3, 2025

Domain wall straightening method of periodically poled ferroelectric crystal

GUILIN BAIRUI OPTOELECTRONICS TECH CO LTD0 citations36