Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6530392 | Valve cleaning assembly | Ewald R. Blatter, Hans C. Blatter, David J. Knapp | 2003-03-11 |
| 5753605 | High Temperature flash point stable microemulsion cleaning composition | Ewald R. Blatter, Michael P. D'Ambrosio, Howard E. Behrns, David J. Knapp | 1998-05-19 |