Inventor
MANDEL ALAN F
US23 patents
⚠️ This page may combine multiple inventors who share the name “MANDEL ALAN F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WESTINGHOUSE ELECTRIC CORP
22 patentsUS5317309AMay 31, 1994
Dual mode electronic identification system
WESTINGHOUSE ELECTRIC CORP432 citations98
US4418795ADec 6, 1983
Elevator servicing methods and apparatus
WESTINGHOUSE ELECTRIC CORP57 citations95
US4149614AApr 17, 1979
Elevator system
WESTINGHOUSE ELECTRIC CORP55 citations95
US4698780AOct 6, 1987
Method of monitoring an elevator system
WESTINGHOUSE ELECTRIC CORP46 citations92
US4512442AApr 23, 1985
Method and apparatus for improving the servicing of an elevator system
WESTINGHOUSE ELECTRIC CORP131 citations92
US4032882AJun 28, 1977
Elevator system
WESTINGHOUSE ELECTRIC CORP37 citations89
US4102437AJul 25, 1978
Elevator system
WESTINGHOUSE ELECTRIC CORP19 citations82
US4400787AAug 23, 1983
Elevator system with speech synthesizer for repetition of messages
WESTINGHOUSE ELECTRIC CORP24 citations81
US4106593AAug 15, 1978
Methods and tools for servicing an elevator system
WESTINGHOUSE ELECTRIC CORP22 citations80
US4022296AMay 10, 1977
Signal input devices and systems
WESTINGHOUSE ELECTRIC CORP21 citations79
US4013993AMar 22, 1977
Elevator system
WESTINGHOUSE ELECTRIC CORP21 citations79
US4157133AJun 5, 1979
Elevator system
WESTINGHOUSE ELECTRIC CORP23 citations78
US4042067AAug 16, 1977
Elevator system
WESTINGHOUSE ELECTRIC CORP12 citations74
US4019607AApr 26, 1977
Signal input devices and systems
WESTINGHOUSE ELECTRIC CORP14 citations74
US3995719ADec 7, 1976
Elevator system
WESTINGHOUSE ELECTRIC CORP14 citations74
US5101137AMar 31, 1992
Integrated tfel flat panel face and edge emitter structure producing multiple light sources
WESTINGHOUSE ELECTRIC CORP19 citations73
US4928118AMay 22, 1990
Enhanced resolution electrophotographic-type imaging station
WESTINGHOUSE ELECTRIC CORP10 citations73
US4646058AFeb 24, 1987
Elevator system with lamp failure monitoring
WESTINGHOUSE ELECTRIC CORP7 citations73
US4400786AAug 23, 1983
Elevator system with speech synthesizer for audible information
WESTINGHOUSE ELECTRIC CORP20 citations73
US4179594ADec 18, 1979
Illuminated pushbutton assembly
WESTINGHOUSE ELECTRIC CORP16 citations73
US4063620ADec 20, 1977
Elevator system
WESTINGHOUSE ELECTRIC CORP9 citations71
US4248327AFeb 3, 1981
Elevator system
WESTINGHOUSE ELECTRIC CORP8 citations70