Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6113042 | Self-adjusting support system | John H. Welsch, Bradley J. Carlson, David A. Reppert, Robert Altonji, Robert J. Welch +2 more | 2000-09-05 |
| 6017009 | Support system with quick-adjust support assembly | Robert K. Swartz, Willard J. Sickles, Robert J. Welch | 2000-01-25 |