Ecodyne Corporation
86Patents
0Active
86Granted
39Portfolio score
Filing activity: Nov 29, 1972 → Aug 24, 1987
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4414113A | Liquid purification using reverse osmosis hollow fibers | Performing Operations; Transporting | 104 | Expired |
| US4238334A | Purification of liquids with treated filter aid material and active particulate material | Performing Operations; Transporting | 71 | Expired |
| US4817830A | Pressure vessel with a bladder | Mechanical Engineering; Lighting; Heating | 43 | Expired |
| US3966599A | Method and apparatus | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4347224A | Chemical dispenser | Performing Operations; Transporting | 37 | Expired |
| US3966608A | Liquid treatment apparatus | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4405466A | Backwash method and apparatus | Performing Operations; Transporting | 35 | Expired |
| US4332685A | Method and apparatus for treating water | Performing Operations; Transporting | 32 | Expired |
| US4411785A | Reverse osmosis hollow fiber filter element | Performing Operations; Transporting | 29 | Expired |
| US4177142A | Mixture of oppositely charged filter aid material | Performing Operations; Transporting | 28 | Expired |
| US4190532A | Charged filter aid material and ion exchange bed | Performing Operations; Transporting | 28 | Expired |
| US4133851A | Cooling tower splash bar fill assembly and method | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4236881A | Liquid metering pump | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4127488A | Method and apparatus for separating solids from liquids | Chemistry; Metallurgy | 24 | Expired |
| US4247396A | Chemical solution dispenser | Chemistry; Metallurgy | 24 | Expired |
| US3995332A | Fin tube seal | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4293414A | Slotted sheet filter element | Performing Operations; Transporting | 21 | Expired |
| US3941698A | Grit selector | Performing Operations; Transporting | 21 | Expired |
| US4681683A | Lamella gravity separator | Performing Operations; Transporting | 21 | Expired |
| US4619374A | Pressure vessel with an improved sidewall structure | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4765507A | Pressure vessel with an improved sidewall structure | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4082664A | Filter and method | Performing Operations; Transporting | 20 | Expired |
| US4107038A | Method and apparatus for removing grit | Performing Operations; Transporting | 18 | Expired |
| US4115484A | Cooling tower fill assembly | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4740262A | Method of manufacturing a pressure vessel with an improved sidewall structure | Emerging Cross-Sectional Technologies | 17 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.