Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7765726 | Sandwich scraper strip having a hard metal core | — | 2010-08-03 |
| 7273151 | Sieve bed for a sifting machine | Kirk D. Sawall, David H. Ditlefsen | 2007-09-25 |
| 6634505 | Sieve bed for a sifting machine | Kirk D. Sawall, David H. Ditlefsen | 2003-10-21 |
| D445437 | Screen panel | Kirk D. Sawall, David H. Ditlefsen | 2001-07-24 |