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.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 24 | |
#2 | Canada | 13 | |
#3 | Switzerland | 2 | |
#4 | United Kingdom | 2 | |
#5 | Austria | 1 | |
#6 | France | 1 |
# | Industry | |
---|---|---|
#1 | Thermal processes | |
#2 | Machines | |
#3 | Control | |
#4 | Mechanical elements | |
#5 | Measurement | |
#6 | Packaging and shipping | |
#7 | Engines, pumps and turbines |
# | Technology | |
---|---|---|
#1 | Unspecified technologies | |
#2 | Systems controlling non-electric variables | |
#3 | Controlling combustion | |
#4 | Burners | |
#5 | Venting or aerating devices | |
#6 | Domestic stoves | |
#7 | Refrigerators | |
#8 | Rotary-pistons | |
#9 | Measuring temperature | |
#10 | Transferring liquids |
# | 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 |
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 |