Inventor

BAO CHENGFAN

CN2 patents

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

SHANGHAI SAINTSUNG POLYTRON TECH INC

1 patent

US9464463B2Oct 11, 2016

Combination lock

SHANGHAI SAINTSUNG POLYTRON TECH INC4 citations61

SHANGHAI SHENGXIANG SCIENCE AND TECHNOLOGY CO LTD

1 patent

US8777107B1Jul 15, 2014

Wheel type laser encoding device and code reading method

SHANGHAI SHENGXIANG SCIENCE AND TECHNOLOGY CO LTD5 citations61