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TUNG SOL ELECTRIC INC

Overview
  • Total Patents
    220
About

TUNG SOL ELECTRIC INC has a total of 220 patent applications. Its first patent ever was published in 1945. It filed its patents most often in United States, France and United Kingdom. Its main competitors in its focus markets electrical machinery and energy, transport and basic communication technologies are TORR LAB INC, ASS ELECT IND and ARNO BRASCH.

Patent filings in countries

World map showing TUNG SOL ELECTRIC INCs patent filings in countries
# Country Total Patents
#1 United States 152
#2 France 22
#3 United Kingdom 18
#4 Canada 14
#5 Germany 13
#6 Japan 1

Patent filings per year

Chart showing TUNG SOL ELECTRIC INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Atkins Carl E 29
#2 Skellett Albert M 18
#3 Ziolkowski Robert L 15
#4 Quinn Halsey P 14
#5 Firth Bernard G 9
#6 Schmidinger Joseph 6
#7 Siiberg Hemming G 6
#8 Mayer Donald W 5
#9 Suberg Hemming G 4
#10 Max Yarmovsky 4

Latest patents

Publication Filing date Title
US3359043A Control valve
US3355887A Tandem master cylinder
US3358445A Control valve
US3284735A Magnetic series flasher having two electromagnetic coils and a magnetically reversible armature
US3275897A Touch control circuit
GB1099854A Condition responsive circuits
US3347796A Brake fluid
US3302057A Flasher for directional and emergency signals
US3305654A Signal flasher having a heater mounted on a mandril separate from, but adjacent to the expansible pull means
US3291149A Liquid level detector
US3199033A Condition responsive circuits with plural output of relaxation oscillator balanced
US3272908A Combined cover member and mount
US3316449A Ignition circuit
US3314081A Capacity operated automatic flushing system
US3297911A Capacitive discharge ignition circuit using a gate controlled semiconductor switch
US3254178A Hot wire controlled swinging vane current intermitter or relay
US3303346A Headlight dimmer using field effect transistor
US3254313A Touch responsive oscillator and control circuits
GB1013651A Compensated shunt type electric snap action device
US3273137A Time delay snap switch