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M & J VALVE CO

Overview
  • Total Patents
    76
About

M & J VALVE CO has a total of 76 patent applications. Its first patent ever was published in 1963. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets mechanical elements, machines and measurement are HAYASHI SHIGEYUKI, LODOLO ALBERTO and GLOBAL VALVE TECHNOLOGY LTD.

Patent filings in countries

World map showing M & J VALVE COs patent filings in countries
# Country Total Patents
#1 United States 75
#2 United Kingdom 1

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Grove Marvin H 40
#2 Arsdale Lyle R Van 10
#3 Grove M 9
#4 Lathrop Francis M 7
#5 Kim Kee W 6
#6 Dunegan Ronald G 5
#7 Ottenstein S 4
#8 Kim K 4
#9 Ottenstein Sidney Allan 3
#10 Lathrop Ii Francis M 3

Latest patents

Publication Filing date Title
US4000989A Method and apparatus for eliminating air from liquid flow streams
US3972507A Valve construction
US3957246A Gate valve and method of manufacture
US3969924A Fluid flow control apparatus and method
US3978707A Flow control apparatus and system
US3955796A Flow control apparatus
US4026515A Flow control apparatus
US3952759A Liquid line break control system and method
US3905082A Gate valve and method of manufacture
US3911724A Sphere launcher and meter prover apparatus and method
US3883115A Valve apparatus for pipe lines
US3890991A Valve apparatus and method
US3827285A Flow control apparatus and method with leak detection
US3841601A Fabricated ball valve
US3860033A Flow diverting apparatus and method
US3851521A System and method for locating breaks in liquid pipelines
US3807450A Hydraulic valve system and method
US3782168A Method and apparatus for calibrating and testing pressure responsive apparatus
US3807688A Gate valve
US3752178A Valve construction