Inventor

CHANG FAN-REN

TW2 patents

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

NAT SCIENCE COUNCIL

1 patent

US5777578AJul 7, 1998

Global positioning system (GPS) Compass

NAT SCIENCE COUNCIL59 citations87

CHANG FAN-REN

1 patent

US9207330B2Dec 8, 2015

Positioning device and positioning method thereof

CHANG FAN-REN0 citations25