Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659224 | Articulating step assembly | — | 2003-12-09 |
| 6203072 | Corrugating joint and syphon system | Raymond Roger Berghuis, Edmund Kozlowski, Jennifer J. Baker, Timothy N. Henry | 2001-03-20 |
| 5931507 | Rotary joint with body lock system | — | 1999-08-03 |
| 5303959 | High speed rotary joint | — | 1994-04-19 |
| 5169181 | Impact resistant rotary joint with glide ring seals | Gerald L. Timm | 1992-12-08 |