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VAN NORMAN MACHINE TOOL CO

Overview
  • Total Patents
    61
About

VAN NORMAN MACHINE TOOL CO has a total of 61 patent applications. Its first patent ever was published in 1921. It filed its patents most often in United States, United Kingdom and France. Its main competitors in its focus markets machine tools, machines and engines, pumps and turbines are PRATT & WHITNEY CO, WERNER FA HERMANN and LEAVITT MACHINE CO.

Patent filings in countries

World map showing VAN NORMAN MACHINE TOOL COs patent filings in countries
# Country Total Patents
#1 United States 48
#2 United Kingdom 8
#3 France 2
#4 Canada 1
#5 Germany 1
#6 Denmark 1

Patent filings per year

Chart showing VAN NORMAN MACHINE TOOL COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Stowell Byron F 12
#2 Curtis Frank W 11
#3 Norman Charles E Van 7
#4 Arp Ewald A 5
#5 Healy Francis P 5
#6 Norman Frederick D Van 5
#7 Ellingham Robert W 2
#8 Scott James Y 2
#9 Ott Robert W 2
#10 Fleming George W 2

Latest patents

Publication Filing date Title
US2325746A Metal cutting tool with inserted teeth
US2328061A Hydraulic vise
US2327404A Milling machine
US2308647A Hydraulic machine tool
US2302744A Spindle control for machine tools
US2281921A Tumble change gear mechanism
US2309241A Dividing head
US2304779A Toolhead unit
US2289874A Milling machine
US2301525A Milling machine
US2230716A Table drive for milling machines
US2233551A Fluid pump
US2263928A Milling machine
US2207861A Boring bar guiding mechanism
US2204855A Boring head
US2196827A Tool guide for boring machines
GB491470A Improvements in and relating to oscillating grinders
US2189604A Boring bar guiding mechanism
US2125442A Valve regrinding device
US2113414A Gauge mechanism