Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9200630 | Electric or water powered sump pump | Zeno Popa | 2015-12-01 |
| 7044158 | Continuous filtration systems using pump, venturi and flow control valve | Allan S. Chace | 2006-05-16 |
| 6149824 | Continuous filtration system using single pump, venturi, and flow control valve | Allan S. Chace | 2000-11-21 |
| 5725758 | Filtration system and assembly | Allan S. Chace | 1998-03-10 |
| 5552465 | Polycarbonate molding compounds stable to light ageing | Dieter Witmann, Jochen Schoeps, Bernd Urbanneck, Karl-Heinz Ott, Horst Peters | 1996-09-03 |
| 4959406 | Laser-writable material | Eckard Foltin, Hans-Werner Depcik, Alfred Pischtschan, Mehmet-Cengiz Yesildag, Reiner Erkelenz | 1990-09-25 |
| 4731180 | Water-solids separator and wiper blade | — | 1988-03-15 |