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FRIDEN CALCULATING MACHINE CO

Overview
  • Total Patents
    49
About

FRIDEN CALCULATING MACHINE CO has a total of 49 patent applications. Its first patent ever was published in 1937. It filed its patents most often in United States and Switzerland. Its main competitors in its focus markets computer technology, electrical machinery and energy and machines are BURROUGHS ADDING MACHINE CO, PIKE ADDING MACHINE COMPANY and ADDER MACHINE CO.

Patent filings in countries

World map showing FRIDEN CALCULATING MACHINE COs patent filings in countries
# Country Total Patents
#1 United States 45
#2 Switzerland 4

Patent filings per year

Chart showing FRIDEN CALCULATING MACHINE COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Moody John L 14
#2 Hopkins George W 10
#3 Ellerbeck Grant C 5
#4 Machado Anthony B 3
#5 Friden Carl M F 3
#6 Rolph Donald L 3
#7 Co Inc Friden Calculating Mach 2
#8 Grobl Jon E 2
#9 Friden Carl M 2
#10 Chall Harold J 2

Latest patents

Publication Filing date Title
US2807766A Multiple voltage electric motor
US2807348A Platen guard for listing adding machine
US2779267A Printing mechanism for a calculating machine
US2718793A Gear
US2728521A Apparatus for typing symbols from a register
US2714986A Single cycle mechanism
US2770416A Calculating machine
US2703678A Electronic counter
US2701099A Degrees, minutes, and seconds machine
US2681767A Calculating machine
US2650761A Calculating machine
US2681765A Value indexing mechanism
US2681766A Adding machine
US2652527A Overload relief for electric motors
US2692363A Variable voltage motor
US2615548A Keyboard key
US2615549A Keyboard key
US2615547A Keyboard key
US2570440A Radio interference eliminator
US2566636A Method and mold for forming plastic insignia