Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6191591 | Battery cell grading holder | Joseph S. Ratajczak, Danny F. Rockett, Julio C. Delgado | 2001-02-20 |
| 5331889 | Manual multiple size can crusher | Laurence Bartlett, John Cowan, Robert DeGuise | 1994-07-26 |