Inventor · disambiguated record

Douglas J. Backman

Also filed as: BACKMAN DOUGLAS J

2 granted patents·528 citations·filing 1997–1999

74Inventor score

Technology areasG09B

Files withAMERICAN NAVIGATION SYSTEMS IN1 AMERICAN NAVIGATIONS SYSTEMS I1

Top patents by PatentIndex Score

2 records

0191US5902347AHand-held GPS-mapping deviceAMERICAN NAVIGATION SYSTEMS IN·Filed 1997·Granted May 11, 1999·376 cites·18 claims
0284US5987380AHand-held GPS-mapping deviceAMERICAN NAVIGATIONS SYSTEMS I·Filed 1999·Granted Nov 16, 1999·152 cites·1 claims

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