Inventor

YU LINGLING

CN2 patents

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

ZENG YANGYUN

1 patent

USD662129SJun 19, 2012

Processing cartridge

ZENG YANGYUN13 citations73

CHINA PETROLEUM & CHEM CORP

1 patent

US11814944B2Nov 14, 2023

Reactive torque automatic balancing device for screw drilling tool, drilling string, and method

CHINA PETROLEUM & CHEM CORP0 citations38