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PROGRESSIVE WELDER COMPANY

Overview
  • Total Patents
    36
About

PROGRESSIVE WELDER COMPANY has a total of 36 patent applications. Its first patent ever was published in 1939. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets machine tools, electrical machinery and energy and machines are THOMSON SPOT WELDER COMPANY, KSM PRODUCTS INC and SERIMER DASA.

Patent filings in countries

World map showing PROGRESSIVE WELDER COMPANYs patent filings in countries
# Country Total Patents
#1 United States 27
#2 Canada 7
#3 France 1
#4 United Kingdom 1

Patent filings per year

Chart showing PROGRESSIVE WELDER COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Leathers Chester F 16
#2 Hugo Purat 7
#3 Johnson Fred H 5
#4 Undy Gustav E 3
#5 Martin William H 2
#6 Benkert Louis M 2
#7 Purat Hugo 2
#8 Eck Cornelius B Van 1
#9 Zulinski Edward J 1
#10 Giesey Boyd V 1

Latest patents

Publication Filing date Title
US2523472A Saturable reactor battery charger
US2483054A Electric controller
US2560283A Fluid control system for flash welders
US2476187A Welding mechanism
US2422999A Method of and apparatus for molding plastic material
US2543502A Electrical control
US2458758A Apparatus for resistance welding
GB610903A Methods of and apparatus for electric welding
US2429186A Apparatus for welding
US2452573A Direct-current apparatus for welding utilizing energy storage apparatus
US2372117A Welding machine
US2413783A Welding control apparatus
US2353847A Switch mechanism
US2359324A Apparatus for welding
US2464981A Method of and apparatus for electric welding
US2372211A Welding apparatus
US2363536A Welding mechanism
US2347695A Rheostat
US2314320A Welding gun
US2358826A Welding mechanism