Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6491181 | Center opening treatment tank | Mark E. Wichmann, Andrew J. Kajpust | 2002-12-10 |
| 6032821 | Center opening treatment tank | Mark E. Wichmann, Andrew J. Kajpust | 2000-03-07 |