Inventor
HEITZMANN DAVID E
US13 patents
⚠️ This page may combine multiple inventors who share the name “HEITZMANN DAVID E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MOR RYDE INTERNATIONAL INC
7 patentsUS6478321B1Nov 12, 2002
Rubber shear spring assembly for tandem axle trailer
MOR RYDE INTERNATIONAL INC73 citations95
US5150918ASep 29, 1992
Trailing arm suspension for vehicle
MOR RYDE INTERNATIONAL INC56 citations95
US5899470AMay 4, 1999
Rubber spring modular wheel suspension for vehicles
MOR RYDE INTERNATIONAL INC42 citations91
US5465997ANov 14, 1995
Rubber spring tag axle supension
MOR RYDE INTERNATIONAL INC29 citations91
US7703792B1Apr 27, 2010
Rotational trailer hitch coupling assembly
MOR RYDE INTERNATIONAL INC15 citations76
US6176478B1Jan 23, 2001
Rubber shear spring add-on assembly for leaf spring and method relating thereto
MOR RYDE INTERNATIONAL INC10 citations72
US5732970AMar 31, 1998
Modular trailer wheel suspension
MOR RYDE INTERNATIONAL INC4 citations61
MORRYDE INT INC
4 patentsUS11560186B2Jan 24, 2023
Load sensing pin box
MORRYDE INT INC2 citations72
US12377700B2Aug 5, 2025
Systems and methods for recreational vehicles
MORRYDE INT INC0 citations55
US12036837B2Jul 16, 2024
Systems and methods for recreational vehicles
MORRYDE INT INC0 citations55
US11701930B2Jul 18, 2023
Trailer coupler assemblies and related methods
MORRYDE INT INC0 citations52