P

Inventor

DING RUIHAO

CN3 patents
⚠️ This page may combine multiple inventors who share the name “DING RUIHAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHINA NATIONAL DIGITAL SWITCHING SYSTEM ENGINEERING & TECH R&D CENTER

2 patents

SHANGHAI HONGZHEN INFORMATION SCIENCE & TECH CO LTD

1 patent