Inventor
NITZBERG LEONARD R
US25 patents
⚠️ This page may combine multiple inventors who share the name “NITZBERG LEONARD R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NITZBERG LEONARD R
10 patentsUS4566707AJan 28, 1986
Wheel chair
NITZBERG LEONARD R259 citations98
US5285807AFeb 15, 1994
Coupling system
NITZBERG LEONARD R31 citations92
US5014732AMay 14, 1991
Fluid-joint breakaway swivel coupling
NITZBERG LEONARD R22 citations92
US4432425AFeb 21, 1984
Wheel chair
NITZBERG LEONARD R50 citations92
US4951722AAug 28, 1990
Fuel dispensing nozzle having a flow rate limiter
NITZBERG LEONARD R12 citations66
US4522448AJun 11, 1985
Method and apparatus for reclamation by reducing highwalls to gradable rubble at augered or longwalled mining sites
NITZBERG LEONARD R5 citations62
US4390212AJun 28, 1983
Machine for mining thin seamed hard material in-situ between adjacent auger holes
NITZBERG LEONARD R5 citations62
US4239721ADec 16, 1980
Process for the manufacture of patterned urea thermoplastic molding compound preforms to be used for the production of consistently patterned buttons with molded holes
NITZBERG LEONARD R4 citations62
US4986321AJan 22, 1991
Fuel dispensing nozzle having a flow rate limiter
NITZBERG LEONARD R6 citations60
US4947905AAug 14, 1990
Flow rate limiting device for an automatic shut-off liquid dispensing nozzle
NITZBERG LEONARD R5 citations60
HELIX ENTERPRISES INC
7 patentsUS4827960AMay 9, 1989
Dual fluid path breakaway swivel coupling
HELIX ENTERPRISES INC48 citations92
US4827961AMay 9, 1989
High velocity fluid swivel joint coupling
HELIX ENTERPRISES INC29 citations92
US4800913AJan 31, 1989
Breakaway ball joint swivel coupling
HELIX ENTERPRISES INC43 citations92
US4791961ADec 20, 1988
Fluid joint swivel coupling
HELIX ENTERPRISES INC32 citations92
US5018546AMay 28, 1991
Fuel supply detachable coupling
HELIX ENTERPRISES INC29 citations88
US4779638AOct 25, 1988
Breakaway swivel coupling
HELIX ENTERPRISES INC20 citations81
US5078188AJan 7, 1992
Flow rate limiting device for an automatic shut-off liquid dispensing nozzle
HELIX ENTERPRISES INC21 citations80
PATENT DEV LTD
3 patentsUS4438699AMar 27, 1984
Method for remote positioning of explosive charges in mining voids
PATENT DEV LTD9 citations72
US4568126AFeb 4, 1986
Method and machine for removing blockage and silt from abandoned auger holes
PATENT DEV LTD3 citations61
US4205881AJun 3, 1980
Machine and method for mining hard material in-situ between adjacent auger holes
PATENT DEV LTD4 citations61