Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6048452 | Waste treatment device and method employing the same | R. C. Shades, Judie Forbes, Robert A. Slovak, David R. Spears, Christina Edvardsson +1 more | 2000-04-11 |
| 5928588 | Porous filter structure and process for the manufacture thereof | Wei-Chih Chen, Ronald V. Repetti | 1999-07-27 |
| 5882517 | Porous structures | Wei-Chih Chen, Ronald V. Repetti | 1999-03-16 |
| 5503735 | Membrane filtration system with control valves for optimizing flow rates | Paul F. Vinas, Dave Spears, Gregg Herzog, Robert A. Slovak | 1996-04-02 |
| D366094 | Counter-top water purification system | Matthew F. Duncan, Robert A. Slovak, David R. Spears | 1996-01-09 |
| 5354464 | Multi-port connecting device | Laurence W. Bassett, Robert A. Slovak, David R. Spears | 1994-10-11 |
| 5143601 | Fluid purification system | Robert A. Slovak | 1992-09-01 |
| 5119860 | Flow restrictor for water purification systems | Robert A. Slovak | 1992-06-09 |
| D306339 | Reverse osmosis water purification unit | — | 1990-02-27 |
| D290820 | Portable water quality tester | — | 1987-07-14 |
| D278650 | Water purifier | Robert A. Slovak, Douglas M. Horn | 1985-04-30 |