| Patents for B01D 25 - Filters formed by clamping together several filtering elements or parts of such elements (5,131) |
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| 12/27/1977 | US4065341 Method of making a liquid filter |
| 11/15/1977 | US4058464 Helically wound expandable filter |
| 10/11/1977 | US4053416 Filter press assembly |
| 10/04/1977 | US4052314 Filter plate for a plate type filter press |
| 08/30/1977 | US4045350 Filter assembly made of thermoplastic materials |
| 08/30/1977 | US4045348 Filter press plate for layer and settling layer filters |
| 08/30/1977 | US4045342 Method and apparatus for filtering |
| 08/02/1977 | US4039457 Coiled filter element for filtering of liquids |
| 06/28/1977 | US4032688 Seamless tubular nonwoven webs and filters thereof |
| 06/28/1977 | US4032450 Filter press |
| 06/28/1977 | US4032443 Removal of grease and oil from particulate bed granules by backwashing with a detergent |
| 05/03/1977 | US4021281 Density, spinning rate |
| 04/12/1977 | US4017400 Oil filter |
| 10/26/1976 | US3988242 Expressing filter plate for filter press of expression type |
| 10/12/1976 | US3985656 Filter cleaning apparatus |
| 09/21/1976 | US3981802 Plate type press filter |
| 09/07/1976 | US3979298 Fluid separating apparatus |
| 08/17/1976 | US3975274 Process and device for filtering media |
| 07/06/1976 | US3968040 Plate filter with horizontally arranged bilaterally acting filters |
| 07/06/1976 | US3968039 Filter press |
| 06/08/1976 | US3962097 Spiral-wound filter |
| 06/08/1976 | US3962090 Filter unit |
| 05/25/1976 | US3958952 Reactor having a catalytic bed with upstream means for filtering solid contaminants |
| 05/18/1976 | US3957645 Filter plate for filter press |
| 04/20/1976 | US3951808 Filter presses |
| 04/13/1976 | US3949651 Method of making filter media |
| 03/23/1976 | US3945923 Modular water filter |
| 01/20/1976 | US3933792 Plate and frame type filtering apparatus |
| 01/20/1976 | US3933557 Continuous production of nonwoven webs from thermoplastic fibers and products |
| 01/06/1976 | US3931014 Filter plate-and-diaphragm assemblies for a filter press |
| 01/06/1976 | US3931013 Water separator-recirculator for dishwashing machine |