Inventor · disambiguated record
David E. Heitzmann
Also filed as: HEITZMANN DAVID E
13 granted patents·1 pending application·307 citations·filing 1989–2024
92Inventor score
Top patents by PatentIndex Score
14 records- 0195US6478321B1Rubber shear spring assembly for tandem axle trailerMOR RYDE INTERNATIONAL INC·Filed 2000·Granted Nov 12, 2002·73 cites·15 claims
- 0283US5150918ATrailing arm suspension for vehicleMOR RYDE INTERNATIONAL INC·Filed 1991·Granted Sep 29, 1992·56 cites·19 claims
- 0382US4995636ATrailing arm modular axle suspension unitMOR RYDE INC·Filed 1989·Granted Feb 26, 1991·56 cites·19 claims
- 0478US11560186B2Load sensing pin boxMORRYDE INT INC·Filed 2019·Granted Jan 24, 2023·2 cites·18 claims
- 0575US7703792B1Rotational trailer hitch coupling assemblyMOR RYDE INTERNATIONAL INC·Filed 2007·Granted Apr 27, 2010·15 cites·10 claims
- 0675US5899470ARubber spring modular wheel suspension for vehiclesMOR RYDE INTERNATIONAL INC·Filed 1997·Granted May 4, 1999·42 cites·39 claims
- 0772US12377700B2Systems and methods for recreational vehiclesMORRYDE INT INC·Filed 2024·Granted Aug 5, 2025·0 cites·20 claims
- 0868US6986524B2Fifth wheel pin box assemblyHEITZMANN DAVID E·Filed 2003·Granted Jan 17, 2006·20 cites·21 claims
- 0965US12036837B2Systems and methods for recreational vehiclesMORRYDE INT INC·Filed 2022·Granted Jul 16, 2024·0 cites·29 claims
- 1064US5465997ARubber spring tag axle supensionMOR RYDE INTERNATIONAL INC·Filed 1994·Granted Nov 14, 1995·29 cites·25 claims
- 1156US2025042207A1Trailer coupler assemblies and related methodsMORRYDE INT INC·Filed 2023·Application pending·0 cites
- 1253US11701930B2Trailer coupler assemblies and related methodsMORRYDE INT INC·Filed 2022·Granted Jul 18, 2023·0 cites·31 claims
- 1344US6176478B1Rubber shear spring add-on assembly for leaf spring and method relating theretoMOR RYDE INTERNATIONAL INC·Filed 1998·Granted Jan 23, 2001·10 cites·33 claims
- 1430US5732970AModular trailer wheel suspensionMOR RYDE INTERNATIONAL INC·Filed 1995·Granted Mar 31, 1998·4 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →