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GRAHAM MFG CORP

Overview
  • Total Patents
    36
About

GRAHAM MFG CORP has a total of 36 patent applications. Its first patent ever was published in 1945. 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 AUTOMATIC ARC WELDING COMPANY, HALLENBECK EMERSON and LIFSHITS V S.

Patent filings in countries

World map showing GRAHAM MFG CORPs patent filings in countries
# Country Total Patents
#1 United States 17
#2 Canada 10
#3 United Kingdom 4
#4 Germany 2
#5 France 2
#6 Belgium 1

Patent filings per year

Chart showing GRAHAM MFG CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Graham Harold J 27
#2 Graham Harold Joseph 3
#3 Powder Paul F 2

Latest patents

Publication Filing date Title
DE1123061B Device for arc stud welding with ceramic ring
US2763755A Electric arc welding
US2625638A Welding system
DE867418C Method and device for welding
US2662626A Orienting device
US2644068A Welding device
US2553499A Welding method
US2611911A Escapement mechanism
GB692559A Improvements in and relating to electric welding systems
GB692558A Improvements in and relating to electric welding apparatus
US2549804A Welding boot
US2685630A Welding system
US2683040A Fluid operated chuck
GB692553A Improvements in or relating to electric welding systems
US2537989A Pneumatic welder
US2537990A Electrical welding apparatus
US2610278A Pneumatic welding gun and associated system
GB663186A Improvements in electric welding systems
US2518463A Method of electrically welding studs
US2486274A Welding generator safety circuit