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ADDO AB

Overview
  • Total Patents
    85
About

ADDO AB has a total of 85 patent applications. Its first patent ever was published in 1937. It filed its patents most often in Germany, United States and Sweden. Its main competitors in its focus markets computer technology, textiles and paper and audio-visual technology are BURROUGHS ADDING MACHINE CO, DALTON ADDING MACHINE CO and ELLIS ADDING TYPEWRITER COMPAN.

Patent filings in countries

World map showing ADDO ABs patent filings in countries
# Country Total Patents
#1 Germany 24
#2 United States 18
#3 Sweden 15
#4 Switzerland 11
#5 United Kingdom 8
#6 France 5
#7 Denmark 3
#8 Finland 1

Patent filings per year

Chart showing ADDO ABs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bernhard Bogert Thure 7
#2 Aktiebolaget Addo 7
#3 Tore Wilk Sven 6
#4 Lydfors John 6
#5 Bogert Thure Bernhard 5
#6 John Lydfors 4
#7 Lydfors J 3
#8 Thure Bernhard Bogert 3
#9 Bogert T 3
#10 Berntson Karl-Erik 2

Latest patents

Publication Filing date Title
US3965485A Drive mechanism for a disc-shaped code carrier
GB1275038A Improvements in or relating to setting devices for type cylinders
US3568921A Power-driven calculating machine
US3495771A Devices in adding machines having a multiplying mechanism for converting a total-taking operation into a subtotal-taking operation
US3487268A Electric resistance matrixes for code conversion
US3261547A Method of performing zero control in adding machines having a balancing register andapparatus therefor
US3301178A Reciprocable type carrier with individually movable type bars
US3216656A Control devices for controlling a card punching machine by means of a data transmitter
GB974530A Improvements in or relating to arrangements in calculating machines for setting up members electromechanically
US3233082A Program control devices
FR1299567A Program control unit
GB974813A Improvements in or relating to programme control devices
US3075680A Apparatuses for winding a strip with sheets thereon around the platen of a listing machine
FR1279565A Device for placing digits in a number printer by means of a transmitter
GB904555A Computing and recording apparatus
US3016188A Multiplier printing mechanism
FR1227362A Device for electromechanically setting numbers in a calculating machine
US2969174A Error code indications providing devices for use in tape punches
US2872862A Symbol printing mechanisms in listing calculating machines and the like
US2985363A Shock absorbing mechanism for pin carriages