Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8172951 | Method of cleaning with an aqueous composition containing a semiconductor | — | 2012-05-08 |
| 6467467 | Method and device for plasma-chemical reduction of gaseous and/or solid pollutants in exhaust gases of internal combustion engines | — | 2002-10-22 |
| 6343400 | Cleaning system using ultraviolet radiation and photoactivatable semiconductor material | Peter Manschott | 2002-02-05 |
| 6258736 | Device with at least one surface layer | — | 2001-07-10 |
| 5891329 | Water tapping fixture | — | 1999-04-06 |
| 5573676 | Process and a device for the decomposition of free and complex cyanides, AOX, mineral oil, complexing agents, cod, nitrite, chromate, and separation of metals in waste waters | Wilfried Werz, Erwin Ecker | 1996-11-12 |
| 5336842 | Process and device for cleaning polluted solids | Wilfried Werz | 1994-08-09 |