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CLEVELAND TWIST DRILL CO

Overview
  • Total Patents
    92
About

CLEVELAND TWIST DRILL CO has a total of 92 patent applications. Its first patent ever was published in 1902. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machine tools, machines and materials and metallurgy are VALERON CORP, HEULE HEINRICH and CHURCH ALBERT E.

Patent filings in countries

World map showing CLEVELAND TWIST DRILL COs patent filings in countries
# Country Total Patents
#1 United States 62
#2 Canada 10
#3 United Kingdom 9
#4 Germany 5
#5 France 5
#6 Switzerland 1

Patent filings per year

Chart showing CLEVELAND TWIST DRILL COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Emmons Joseph V 31
#2 Githens Thomas F 6
#3 Peck Eugene C 4
#4 Wagner William A 3
#5 Dillard James B 3
#6 Clifford John E 3
#7 Faust Charles L 3
#8 Emmons Joseph Victor 3
#9 Ward Alvin 2
#10 Konopka Richard O 2

Latest patents

Publication Filing date Title
US3833232A Chuck jaw insert assembly
US3785223A Rotary indexing machine
US3295416A Machine tool control system
US3296881A Anti-backlash gear
US3196748A Machine tool control system
US3186210A Extrusion die
US3357905A Electrolyte composition and method of electrolytically removing stock from workpiece
US3010345A Tube drill
US2912890A Stud removers
US2859645A Drilling bit for construction work
GB846126A Acoustical tile drill
GB854541A Electrolytic sharpening, shaping and finishing of electrically conductive materials
US2847885A Deep hole drill
US2939825A Sharpening, shaping and finishing of electrically conductive materials
US2932196A Internal recessing tool and holder therefor
US2792728A Counter-cutting tool
US2792862A Acoustical tile drill
US2613710A Machine bit for drilling wood
US2652083A Wood bit
US2590766A Method of forming tool blanks