Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7281309 | Explosion resistant waste container | — | 2007-10-16 |
| 7014059 | Explosion resistant waste container | — | 2006-03-21 |
| 6722733 | Protective seat cover | William L. Schmidt | 2004-04-20 |
| 4915160 | Apparatus for and a method of producing moulding sand for moulds | — | 1990-04-10 |