Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7666077 | Paint booth arrangement and method for directing airflow | — | 2010-02-23 |
| 7123990 | Gap welding process | — | 2006-10-17 |
| 6787726 | Rail welding apparatus incorporating rail restraining device, weld containment device, and weld delivery unit | Richard F. Kral | 2004-09-07 |
| 6396020 | Rail welding apparatus incorporating rail restraining device, weld containment device and weld delivery unit | Richard F. Kral | 2002-05-28 |