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DOALL CO

Overview
  • Total Patents
    44
About

DOALL CO has a total of 44 patent applications. Its first patent ever was published in 1948. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machine tools, control and machines are LOGIC SYSTEMS INC, YAMAZAKI MACH WORKS and SOLIDCAM LTD.

Patent filings in countries

World map showing DOALL COs patent filings in countries
# Country Total Patents
#1 United States 14
#2 Canada 9
#3 United Kingdom 6
#4 Germany 5
#5 France 4
#6 Belgium 3
#7 Switzerland 3

Patent filings per year

Chart showing DOALL COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Anderson William T 10
#2 Anderson William Theodore 2
#3 Busch Theodore N 2
#4 Wallace Robert A Jr 2
#5 Butts G A 2
#6 Anderson W 2
#7 Gene A Butts 1
#8 Henry Richard J 1
#9 A Butts Gene 1
#10 Thomas John W 1

Latest patents

Publication Filing date Title
CA980449A Numerically controlled machine tool with tool radius compensation
US3932924A Method of changing tools
GB1369194A Numerical coantrol system for machine tools
GB1369193A Numerical control system for machine tools
GB1355345A Machine for exchanging tools in a machine tool
US3582211A Goniometer
US3574292A Interferometer motion and velocity controller
US3484630A Ultrasonic magnetostrictive transducer element
US3441828A Scr phase responsive power control circuit having extended analog range
US3087247A Determining reference plane for surface plate inspection
GB996479A Improvements relating to cutting tools
US3110952A Carbide tipped saw blade
US3097675A Band lubricator for cutoff machines and the like
US3087246A Determining reference plane for surface plate inspection
US2923181A Combination reaming and burnishing tool
US2954118A Guard for protecting the cutting edges of saw blades
GB805869A Method of hardening cutting tools
US2786788A High speed tool steel saw band and method of making the same
US2502976A Variable speed pulley
CA566865A High speed tool steel saw band and method of making the same