OLIVER UNITED FILTERS INC has a total of 116 patent applications. Its first patent ever was published in 1924. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets chemical engineering, machines and basic materials chemistry are PUROLATOR FILTERS NA LLC, KURITA MACHINERY MANUF and PRODUCTS UNLIMITED INC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 81 | |
#2 | Canada | 14 | |
#3 | United Kingdom | 9 | |
#4 | Germany | 6 | |
#5 | Finland | 3 | |
#6 | France | 3 |
# | Industry | |
---|---|---|
#1 | Chemical engineering | |
#2 | Machines | |
#3 | Basic materials chemistry | |
#4 | Engines, pumps and turbines | |
#5 | Foods and drinks | |
#6 | Materials and metallurgy | |
#7 | Environmental technology | |
#8 | Mechanical elements |
# | Technology | |
---|---|---|
#1 | Separation | |
#2 | Unspecified technologies | |
#3 | Liquid hydrocarbon mixture production | |
#4 | Beer | |
#5 | Building materials | |
#6 | Pipes | |
#7 | Water treatment | |
#8 | Pumps | |
#9 | Cyclically operating valves | |
#10 | Unspecified technologies |
# | Name | Total Patents |
---|---|---|
#1 | Denhard Harry W | 9 |
#2 | Sweetland Ernest J | 7 |
#3 | Hillier Gerald O | 7 |
#4 | Ackerly Jr Orville B | 6 |
#5 | Herbert Elmer H | 4 |
#6 | Flynn Edward D | 4 |
#7 | Oswald Harold F | 4 |
#8 | Ackerly Orville B Jr | 3 |
#9 | Brittain Frank W | 3 |
#10 | Evans Franklin J | 3 |
Publication | Filing date | Title |
---|---|---|
US2698645A | Paper widening machine | |
GB678126A | Improvements in or relating to filters | |
US2598606A | Continuous rotary drum thickener | |
US2595627A | Ion exchange reactor | |
US2563205A | Automatic filter valve | |
US2446746A | Continuous rotary filter | |
US2548999A | Continuous industrial filter | |
US2563183A | Puddler | |
US2490421A | Foam breaker | |
US2459527A | Valve for overflow systems | |
US2472558A | Rotary drum filter | |
US2399803A | Diaphragm pump | |
US2430182A | Process of treating oil refinery waste | |
GB576967A | Improvements in or relating to a device for discharging cohesive solids from an endless support | |
GB589817A | Improvements in or relating to filters | |
US2363840A | Filter | |
US2395499A | Continuous filter | |
US2377189A | Continuous industrial filter | |
US2362231A | Filter | |
US2352340A | Filter |