Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4953403 | Positive displacement flushable flow meter | — | 1990-09-04 |
| 4458709 | Method and apparatus for measuring and controlling fluid flow rates | — | 1984-07-10 |
| 4400147 | Flushable rotary gear pump | Bernd O. Theis, Georg Wawra, Richard Juffa | 1983-08-23 |
| 4375865 | Color change system for spray coating apparatus | — | 1983-03-08 |
| 4337282 | Color change system for spray coating apparatus | — | 1982-06-29 |