Inventor
KREFT KEITH A
13 patents
⚠️ This page may combine multiple inventors who share the name “KREFT KEITH A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUN ELECTRIC CORP
7 patentsUS4348732ASep 7, 1982
Method and apparatus for engine exhaust analyzer
SUN ELECTRIC CORP41 citations92
US4795979AJan 3, 1989
Method and apparatus for determining cylinder #1 power firing event in wasted spark ignition systems
SUN ELECTRIC CORP37 citations89
US4125894ANov 14, 1978
Engine test and display apparatus
SUN ELECTRIC CORP70 citations89
US4337515AJun 29, 1982
Automotive engine analyzer for indicating a no-connection condition of engine test leads
SUN ELECTRIC CORP19 citations73
US5068613ANov 26, 1991
Method and apparatus for generating display waveforms im wasted spark ignition systems
SUN ELECTRIC CORP11 citations70
US4309900AJan 12, 1982
Apparatus for measurement and display of relative compression by cylinder
SUN ELECTRIC CORP13 citations69
US4328546AMay 4, 1982
Apparatus for evaluating the performance of an internal combustion engine using exhaust gas emission data
SUN ELECTRIC CORP19 citations68