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.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 10 | |
#2 | Germany | 2 |
# | Industry | |
---|---|---|
#1 | Mechanical elements | |
#2 | Machines | |
#3 | Measurement | |
#4 | Control | |
#5 | Packaging and shipping | |
#6 | Machine tools |
# | 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 |
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 |