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UNITED GREENFIELD CORP

Overview
  • Total Patents
    23
About

UNITED GREENFIELD CORP has a total of 23 patent applications. Its first patent ever was published in 1955. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machine tools, machines and measurement are HENKE VOLKER, ALPS TOOL KK and OKUMURA TAKASHI.

Patent filings in countries

World map showing UNITED GREENFIELD CORPs patent filings in countries
# Country Total Patents
#1 United States 18
#2 Canada 3
#3 United Kingdom 1
#4 Sweden 1

Patent filings per year

Chart showing UNITED GREENFIELD CORPs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Kallio William J 6
#2 Strickland Royce M 6
#3 Rhino Del H 2
#4 Stimson Glen H 2
#5 Johnson Walter J 1
#6 Turton John W 1
#7 Wilfred Roth 1
#8 Henderson Paul D 1
#9 Brainerd William H 1
#10 Lindblad Frederick W 1

Latest patents

Publication Filing date Title
US3477076A Chaser-positioning device for threadcutting die heads
US3271822A Carbide facing for extrusion dies
US3276051A Self-opening threading tool having rotary closing assembly and reciprocating latch means therefor
US3217419A Computer gage
US3086229A Interconnected pivoted latch means for die-heads
US3096589A Gage handle
US3005368A Adjustable pliers
US3090171A Surface measurement apparatus and control
US3051205A Twist drill
US2977828A Carbide drill
US2966081A Drill
US2958877A Self opening die head with improved ring-shaped latch unit
US2936804A Twist drill
US2974418A Helix tester
US2889725A Carbide drill
US2942501A Drill
US3014386A Drill
GB827755A Chuck
US2905476A Controlled centering chuck
CA785194A Carbide facing for extrusion dies