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A P CONTROLS CORP

Overview
  • Total Patents
    43
About

A P CONTROLS CORP has a total of 43 patent applications. Its first patent ever was published in 1944. It filed its patents most often in United States, Canada and Switzerland. Its main competitors in its focus markets thermal processes, machines and control are CASH A W CO, REYNOLDS GAS REGULATOR COMPANY and OMT OFF MECC TARTARINI.

Patent filings in countries

World map showing A P CONTROLS CORPs patent filings in countries
# Country Total Patents
#1 United States 24
#2 Canada 13
#3 Switzerland 2
#4 United Kingdom 2
#5 Austria 1
#6 France 1

Patent filings per year

Chart showing A P CONTROLS CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Biermann William A 17
#2 Mccarty Lourdes V 15
#3 Johnson Roy W 8
#4 Pawelsky Vernon R 8
#5 Dulak John T 6
#6 Ehlke Edward C 5
#7 Heiser Ferdinand F 4
#8 Zarwell Cedric E 3
#9 Rack Edward R 3
#10 Vicenzi Reno L 2

Latest patents

Publication Filing date Title
US2743871A Gas flow control
US2743769A Fuel and air supply control for burners
US2757722A Burner oil and air control system
GB724334A Gas flow control
GB725659A Automatic control apparatus for fuel flow control valves
US2719673A Conversion units for fuel control valves
US2716535A Dispensing valve
US2711184A Reset valve
US2659569A Sealed valve
US2670005A Liquid flow control
US2587480A Gas control valve
US2683565A Gas control
US2630272A Damper regulator
US2592327A Safety control
US2542802A Thermostatic expansion valve with adjustable pressure limiting feature
US2548799A Pump
US2583788A Adjustable fluid metering valve
US2627911A Fuel control device
US2547070A Thermostatic expansion valve
US2547995A Fluid flow control device