Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6745469 | Method of making screen media and a screening passage therefore | Mark S. Lutz, Dennis G. Purton | 2004-06-08 |
| 6138838 | Screen media and a screening passage therefore | Mark S. Lutz, Dennis G. Purton | 2000-10-31 |
| 5954956 | Modular screen cylinder and a method for its manufacture | Mark S. Lutz, Dennis G. Purton | 1999-09-21 |
| 5454148 | Tombstone fixture | Glen A. Ewer | 1995-10-03 |