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HENRY VALVE CO

Overview
  • Total Patents
    44
About

HENRY VALVE CO has a total of 44 patent applications. Its first patent ever was published in 1959. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets mechanical elements, machines and thermal processes are FUTURECRAFT CORP, HENRY VALVE COMPANY INC and NUCLEAR PRODUCTS COMPANY.

Patent filings per year

Chart showing HENRY VALVE COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gugala Zbigniew H 13
#2 Jones Evan 12
#3 Evan Jones 11
#4 Scapes John N 9
#5 Krause Richard J 7
#6 Loman Lawrence J 5
#7 Shah Madhukant A 4
#8 Jones E 2
#9 Krawetz Arthur Altshuler 1
#10 Shah Madhukant 1

Latest patents

Publication Filing date Title
US5590680A External valve operating means
US5577709A Stem seal configuration for ball valves
US4683057A Refillable filter-drier assembly
US4142543A Valve stem and disc combination and method of assembling same
US4049017A Adjustable relief valve
US3970285A Ball valve assembly
CA922611A Field test kit reagent transferring system
CA935808A Valve assembly
US3700206A Valve assembly
US3653839A Field test kit reagent transferring system and method for using same
US3482596A Metering valve
US3396940A Packless valve with anti-frost means
US3425444A Relief valve
US3252475A Piercing valve
US3510260A Method for determining acid content of oil sample
US3355021A Inline refrigerant filter assembly having a by-pass valve therein
US3288162A Charging and sampling valve in a closed fluid system
US3282554A Swivel valve
US3286838A Refrigerant drier or filter
US3142287A Refrigerant moisture-liquid indicator assembly and cap unit therefor