Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7225966 | Welded joints with polymer sealant | — | 2007-06-05 |
| 6729838 | Automated barrel panel transfer and processing system | John A. Johnson, Richard K. Hansen | 2004-05-04 |
| 6457932 | Automated barrel panel transfer and processing system | John A. Johnson, Richard K. Hansen | 2002-10-01 |
| 6213849 | Automated barrel panel transfer and processing system | John A. Johnson, Richard K. Hansen | 2001-04-10 |