Inventor
PORTMANN HUBERT
16 patents
⚠️ This page may combine multiple inventors who share the name “PORTMANN HUBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EBAUCHES SA
14 patentsUS4068295AJan 10, 1978
Voltage multiplier for an electronic time apparatus
EBAUCHES SA68 citations95
US4291266ASep 22, 1981
Device for charging an accumulator from an electrical energy source more particularly for an electronic watch
EBAUCHES SA38 citations92
US4134057AJan 9, 1979
Device for enabling an accumulator to be recharged from a source of electrical energy
EBAUCHES SA37 citations92
US3993985ANov 23, 1976
Indicator for the condition of a battery operating a timepiece
EBAUCHES SA42 citations89
US3943696AMar 16, 1976
Control device for setting a timepiece
EBAUCHES SA29 citations81
US4139279AFeb 13, 1979
Electronic instrument
EBAUCHES SA10 citations73
US4109457AAug 29, 1978
Universal electronic timepiece
EBAUCHES SA17 citations73
US4030284AJun 21, 1977
Control device for an electronic wrist watch
EBAUCHES SA9 citations73
US4477194AOct 16, 1984
Device for controlling the functions of an electronic watch
EBAUCHES SA11 citations72
US4431314AFeb 14, 1984
Presettable digital time-piece display system
EBAUCHES SA2 citations62
US4412215AOct 25, 1983
Novel control means for an electrochromic display
EBAUCHES SA5 citations62
US4145872AMar 27, 1979
Electronic watch
EBAUCHES SA2 citations62
US4144704AMar 20, 1979
Safety device for battery-operated watches
EBAUCHES SA3 citations62
US4024678AMay 24, 1977
Control and correction circuit for an electronic watch
EBAUCHES SA6 citations59