Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6116688 | Chair | Richard N. Roslund, Jr. | 2000-09-12 |
| 6059363 | Chairback with side torsional movement | Richard N. Roslund, Jr., Robert T. Ritt, Patrick Nelson, Joel Dral, John Clark | 2000-05-09 |
| 6053579 | Height-Adjustable chair arm assembly having cam-type adjusting mechanism | Patrick Nelson | 2000-04-25 |
| 6015187 | Tilt control for chair | Richard N. Roslund, Jr., Patrick Nelson, Troy Roark, Joel Dral, Steve Simpson +1 more | 2000-01-18 |
| 5957534 | Chair | Richard N. Roslund, Jr. | 1999-09-28 |
| 5934758 | Membrane chair | David J. Ritch, Mark Saffell | 1999-08-10 |
| 5853222 | Height-adjustable chair back | Richard N. Roslund, Jr. | 1998-12-29 |
| 5829839 | Height-adjustable chair arm assembly having gear-type adjusting mechanism | Joel Dral | 1998-11-03 |
| 5795026 | Height adjustable chair arm | Joel Dral | 1998-08-18 |
| 5738318 | Chair with vertically shiftable height adjustment | Douglas M. Thole | 1998-04-14 |
| 5333368 | Chair control with forward tilt | Michael Kriener, Johannes Uhlenbrock, Richard N. Roslund, Jr. | 1994-08-02 |
| 4549763 | Transportation seat with vandal-resistant grabrail | — | 1985-10-29 |
| 4527832 | Seating apparatus with removable reclinable back assemblies | Kevin McMains | 1985-07-09 |
| 4266822 | Foldable transportation seat | Chester J. Barecki | 1981-05-12 |
| 4194716 | Air suspension driver's seat | Chester J. Barecki | 1980-03-25 |