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KNOBEL ELEKTRO APP

Overview
  • Total Patents
    74
About

KNOBEL ELEKTRO APP has a total of 74 patent applications. Its first patent ever was published in 1958. It filed its patents most often in Switzerland, Germany and France. Its main competitors in its focus markets electrical machinery and energy, machines and medical technology are HITACHI FERRITE ELECT LTD, GREATCHIP TECHNOLOGY CO LTD and SUMIDA TECHNOLOGIES INC.

Patent filings in countries

World map showing KNOBEL ELEKTRO APPs patent filings in countries

Patent filings per year

Chart showing KNOBEL ELEKTRO APPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Meili Ernst 12
#2 Meili E 10
#3 Knobel Fritz 6
#4 Knobel F 3
#5 Max Haefliger 3
#6 Knobel-Dubs Fritz 3
#7 Fritz Knobel 2
#8 Werfeli Friedrich 2
#9 Willi Zuest 1
#10 Knobel-Dubs F 1

Latest patents

Publication Filing date Title
DE3709004A1 Circuit arrangement for supplying a fluorescent lamp
CH663508A5 Electronic controller for fluorescent lamps and method for the operation thereof.
CH660546A5 Circuit arrangement for the ignition and operation of fluorescent lamps with heated electrodes.
CH607538A5 Fluorescent lamp starter and supply circuit
CH598735A5 Fluorescent lamp starting circuit
CH583967A5 Heating wire switch with sprung conductive arm - has common conductive holder for wire and arm fixed ends
DE2415880A1 STARTERLESS CIRCUIT ARRANGEMENT FOR IGNITION AND OPERATION OF ONE OR MORE LOW-VOLTAGE FLUORESCENT LAMPS CONNECTED IN SERIES
IL42792D0 Electric connectors with sliding contacts
GB1418976A Method for fabricating a ballast choke with adjustable air gap and choke produced thereby
ZA7303654B Method for fabricating a choke with adjustable air gap and choke produced thereby
DE2323266A1 METHOD OF MANUFACTURING A THROTTLE WITH ADJUSTABLE AIR GAP
DE2217249A1 DEVICE ON A FLUORESCENCE TUBE FOR REGULATING THE DIRECTION AND / OR SIZE OF THE LIGHT FLOW
US3790919A Contact piece for the solderless connection of an insulated electrical conductor and method of using same
DE2209237A1 CONTACT PIECE FOR CONNECTING AN INSULATED ELECTRICAL CONDUCTOR WITHOUT SOLDERING AND USING THE SAME
ES398127A1 Laminated magnetic core for induction devices and laminations for forming such magnetic core
US3626490A Liquid metering apparatus
ES342916A1 Improvements in the construction of acorazadas reactancias. (Machine-translation by Google Translate, not legally binding)
US3458757A Automatic starter switch for preheating and ignition of fluorescent lamps having heated cathodes