Inventor · disambiguated record
Fred O. Hartmann
Also filed as: HARTMANN FRED O
5 granted patents·56 citations·filing 2003–2010
79Inventor score
Top patents by PatentIndex Score
5 records- 0180US7462009B2Hand-truck apparatus having locking handleGRAND STEER INC·Filed 2003·Granted Dec 9, 2008·37 cites·13 claims
- 0273US8336913B1Steering device for pallet jackAASEBY ALLEN C·Filed 2010·Granted Dec 25, 2012·8 cites·4 claims
- 0361US7475887B2Pallet jackGRAND STEER INC·Filed 2007·Granted Jan 13, 2009·4 cites·16 claims
- 0456US7427075B2Steering device for pallet truckGRAND STEER INC·Filed 2007·Granted Sep 23, 2008·1 cites·11 claims
- 0551US7226060B2Steering device for pallet truckGRAND STEER INC·Filed 2004·Granted Jun 5, 2007·6 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →