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EITEL MCCULLOUGH INC

Overview
  • Total Patents
    374
About

EITEL MCCULLOUGH INC has a total of 374 patent applications. Its first patent ever was published in 1941. It filed its patents most often in United States, United Kingdom and Switzerland. Its main competitors in its focus markets electrical machinery and energy, machines and materials and metallurgy are PANEL TECHNOLOGY, MI O VALVE CO LTD and EITEL MCCULLOUGH.

Patent filings in countries

World map showing EITEL MCCULLOUGH INCs patent filings in countries
# Country Total Patents
#1 United States 230
#2 United Kingdom 75
#3 Switzerland 42
#4 Germany 21
#5 France 6

Patent filings per year

Chart showing EITEL MCCULLOUGH INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Mccullough Jack A 69
#2 Eitel William W 58
#3 Williams Paul D 31
#4 Sorg Harold E 20
#5 Preist Donald H 18
#6 Drieschman Donald F 16
#7 Oskar Heil 13
#8 Murdock Clayton E 11
#9 Becker George A 6
#10 Stuart William R 6

Latest patents

Publication Filing date Title
GB1030043A Slow wave structure for electron beam tubes and method of making same
US3227848A Method and means for thermally stressing wire elements
US3197290A Metalized ceramic structures
US3227911A Indirectly heated cathodes
US3254258A Electron tube
US3227917A Cavity resonator with flexible means forming both hermetic seal and pivot point
US3202493A Art of sealing quartz to metal
US3193920A Pressure sealing of plated envelope sections
DE1234327B Electron tubes with a plurality of ceramic shell parts
GB917493A Electron tube plugs
GB1016136A Improvements in or relating to electron tubes
US3227906A Cathode support and heat shielding structure for electron gun
US3195096A Socket for electron tubes
US3252034A R-f window for high power electron tubes
US3227904A Collector for electron beam tube
US3176179A Electron gun and support structure therefor
US3222557A Tube having a heat conducting mount
US3227905A Electron tube comprising beryllium oxide ceramic
US3132274A Electron tube with a cathode heat dam
US3226822A Art of bonding ceramic to metal