Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6892972 | Size reduction machine | Albert Kircher, Thomas E. Sotomayor, Elbert D. Wilson | 2005-05-17 |
| 6367723 | Size reduction machine having an adjustable impeller and screen holder | Albert Kircher, Thomas E. Sotomayor, Elbert D. Wilson | 2002-04-09 |