P

Inventor

CHANG XIAOYUAN

US10 patents
⚠️ This page may combine multiple inventors who share the name “CHANG XIAOYUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OTIS ELEVATOR CO

6 patents

UNITED TECHNOLOGIES CORP

1 patent

GORBOUNOV MIKHAIL B

1 patent

CARRIER CORP

1 patent

CHANG XIAOYUAN

1 patent