Inventor

ZHANG QINGGANG

CN4 patents

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

TANGSHAN RAILWAY VEHICLE CO

1 patent

US9409580B2Aug 9, 2016

Obstacle removing and energy absorbing device and leading car of motor train unit

TANGSHAN RAILWAY VEHICLE CO3 citations62

UNIV SHANGHAI JIAOTONG

1 patent

US11898072B2Feb 13, 2024

Fluorescent semiconductor nanocrystal material, preparation and application thereof

UNIV SHANGHAI JIAOTONG0 citations58

UNIV CHINA PETROLEUM EAST CHINA

1 patent

US11247200B2Feb 15, 2022

Carbon nitride-based photocatalyst and preparation method thereof

UNIV CHINA PETROLEUM EAST CHINA0 citations55

CRRC TANGSHAN CO LTD

1 patent

US11511712B2Nov 29, 2022

Train compartment brake control method, train compartment, and train

CRRC TANGSHAN CO LTD0 citations44