Inventor · disambiguated record

Fan-Ren Chang

Also filed as: CHANG FAN-REN

2 granted patents·59 citations·filing 1997–2012

57Inventor score

Technology areasG01S

Files withCHANG FAN-REN1 NAT SCIENCE COUNCIL1

Top patents by PatentIndex Score

2 records

0162US5777578AGlobal positioning system (GPS) CompassNAT SCIENCE COUNCIL·Filed 1997·Granted Jul 7, 1998·59 cites·5 claims
0228US9207330B2Positioning device and positioning method thereofCHANG FAN-REN·Filed 2012·Granted Dec 8, 2015·0 cites·6 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →