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M & J ENGINEERING CO

Overview
  • Total Patents
    12
About

M & J ENGINEERING CO has a total of 12 patent applications. Its first patent ever was published in 1945. It filed its patents most often in United States and Germany. Its main competitors in its focus markets mechanical elements, machines and measurement are CLA VAL COMPANY, ANA LIDIETH MADRIGAL CHAVARRIA and AFA CONTROLS LLC.

Patent filings in countries

World map showing M & J ENGINEERING COs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Germany 2

Patent filings per year

Chart showing M & J ENGINEERING COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Grove Marvin H 4
#2 Bryant Austin U 2
#3 Witt Richard M 2
#4 Oliver Alton D 1
#5 Annin Douglas H 1
#6 Henry Grove Marvin 1
#7 Grove Marvin Henry 1
#8 Arsdale Lyle Robert Van 1
#9 Van Arsdale Lyle Robert 1

Latest patents

Publication Filing date Title
US3172639A Gate valve body construction
US3173652A Valve body with bolted rib construction
US3239921A Method for manufacture of valve bodies
US3164163A Valve construction
US3166291A Valve construction and method
US2650607A Gas flow control apparatus
US2627249A Fluid pressure operated positioning apparatus for motor valves
US2587800A Motor valve and positioner apparatus
US2601578A Valve construction
US2599534A Fluid flow control apparatus