Inventor

SENFTEN DAVID A

9 patents

⚠️ This page may combine multiple inventors who share the name “SENFTEN DAVID A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HUNTER ENG CO

3 patents

US4134680AJan 16, 1979

Vehicle headlight testing apparatus

HUNTER ENG CO34 citations92

US4126943ANov 28, 1978

Wheel alignment apparatus and method

HUNTER ENG CO39 citations91

US4034479AJul 12, 1977

Instrument for measuring angles and for determining vehicle wheel alignment characteristics

HUNTER ENG CO11 citations72

ARCHITECTURAL CONTROL SYSTEMS

2 patents

US5050519ASep 24, 1991

Boat trolling motor control

ARCHITECTURAL CONTROL SYSTEMS34 citations90

US4529234AJul 16, 1985

Electrical operating means for door lock mechanisms

ARCHITECTURAL CONTROL SYSTEMS50 citations90

SENFTEN DAVID A

2 patents

US7293671B2Nov 13, 2007

Magnetic coupling and uncoupling system for model railroad rolling stock

SENFTEN DAVID A3 citations59

US7080745B2Jul 25, 2006

Magnetic coupling and uncoupling system for model railroad rolling stock

SENFTEN DAVID A4 citations59

HAGER HINGE COMPANY

1 patent

US4284861AAug 18, 1981

Switch hinge

HAGER HINGE COMPANY38 citations88

ARCHITECTURAL SECURITY SYSTEMS

1 patent

US5129345AJul 14, 1992

System and method for automatically steering a boat along a path to maintain a selected depth

ARCHITECTURAL SECURITY SYSTEMS10 citations68