Inventor · disambiguated record
Ward Gieffers
Also filed as: GIEFFERS WARD · GIEFFERS WARD J
4 granted patents·504 citations·filing 1990–1994
84Inventor score
Files withFEDERAL SIGNAL CORP4
Top patents by PatentIndex Score
4 records- 0194US5422623AProgrammable emergency signalling device and systemFEDERAL SIGNAL CORP·Filed 1993·Granted Jun 6, 1995·148 cites·43 claims
- 0292US5557257AProgrammable emergency signalling system for a vehicleFEDERAL SIGNAL CORP·Filed 1993·Granted Sep 17, 1996·117 cites·14 claims
- 0392US5296840AProgrammable emergency signalling system for a vehicleFEDERAL SIGNAL CORP·Filed 1990·Granted Mar 22, 1994·175 cites·34 claims
- 0488US6100791AProgrammable emergency signalling device and systemFEDERAL SIGNAL CORP·Filed 1994·Granted Aug 8, 2000·64 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →