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HENNINGER JR ANDREW F

Overview
  • Total Patents
    13
About

HENNINGER JR ANDREW F has a total of 13 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, audio-visual technology and basic materials chemistry are RAINBOW LIGHT INC, SHIKOH TECH LLC and WALTER LUDWIG WILHELM SCHALLRE.

Patent filings in countries

World map showing HENNINGER JR ANDREW Fs patent filings in countries
# Country Total Patents
#1 United States 13

Patent filings per year

Chart showing HENNINGER JR ANDREW Fs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Henninger Jr Andrew F 13
#2 Henninger George D 3

Latest patents

Publication Filing date Title
US2281579A Manufacture of gaseous conduction lamps
US2219923A Battery operated gaseous conduction lamp flasher
US2210718A Electrical display device
US2108487A Negative glow display
US2069308A Negative glow device
US2057522A Negative glow lamp
US2073062A Animated figure negative glow device
US1938538A Negative glow system for creating illusion of motion
US2020413A Means for obtaining flame effects in negative glow devices
US1960245A Flashing negative glow display device
US2069307A Method of treating electrodes of negative glow devices
US2072622A Circuit for negative glow devices
US2002775A Cathode glowlamp