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NAT BROACH & MACH

Overview
  • Total Patents
    637
About

NAT BROACH & MACH has a total of 637 patent applications. Its first patent ever was published in 1931. It filed its patents most often in United States, United Kingdom and France. Its main competitors in its focus markets machine tools, machines and measurement are GLEASON WORKS, GLEASON PFAUTER MASCHINENFABRI and SIMMONS OLIVER G.

Patent filings in countries

World map showing NAT BROACH & MACHs patent filings in countries
# Country Total Patents
#1 United States 250
#2 United Kingdom 126
#3 France 108
#4 Canada 104
#5 Germany 36
#6 Japan 6
#7 Italy 4
#8 Switzerland 2
#9 Brazil 1

Patent filings per year

Chart showing NAT BROACH & MACHs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Praeg Walter S 74
#2 Mentley Max B 39
#3 Bassoff Arthur B 34
#4 Anthony Russel W 30
#5 Gates Thomas S 30
#6 Daniel David W 29
#7 Davis Kenneth J 25
#8 Drummond Robert S 20
#9 Bregi Benjamin F 18
#10 Yera Harvey J 13

Latest patents

Publication Filing date Title
CA2146623A1 Machine tool with temperature compensation
GB9617339D0 Two-stage broaching of engine block bearings
US5435676A Two-stage broaching of engine block bearings
US5326201A Loader/unloader for blind broaching
US5421683A Machine tool with temperature compensation
CA2089244A1 Broaching bearings in an engine block
US5257886A Coolant distribution system for blind broaching
CA2060680A1 Stock divider
US5167603A Apparatus for progressive blind broaching
US4924842A Optimization method and apparatus for dressing a grinding wheel
CA1276470C Optimization method and apparatus for dressing a grinding wheel
JPH01306123A Tooth profile grinding device and grinding allowance distribution device therefor
CA1260273A Stock divider including a computer controlled gear locator
US4755950A Stock divider including a computer controlled gear locator
US4671709A Pot broach
US3335639A Method and apparatus for producing a shaving cutter
US3337964A Checker
US3327589A Broaching apparatus
US3440769A Gear grinding machine
US3314157A Automatic gear checker for internal gears