Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6726276 | Synergistic body positioning and dynamic support system | Alan L. Tholkes | 2004-04-27 |
| 6702372 | Synergistic body positioning and dynamic support system | Alan L. Tholkes, DuWayne Dandurand | 2004-03-09 |
| 6644748 | Synergistic body positioning and dynamic support system | Alan L. Tholkes, DuWayne Dandurand | 2003-11-11 |
| D425713 | Adjustable seating unit | Alan L. Tholkes | 2000-05-30 |
| D425321 | Work station | Alan L. Tholkes | 2000-05-23 |
| 5873628 | Dynamic posture chair | Peter B. Allard, Harry C. Sweere | 1999-02-23 |
| D397109 | Handheld two-way radio with hinged cover | Kris J. Lambrecht | 1998-08-18 |
| D384059 | Handheld two-way radio with hinged cover | Kris J. Lambrecht | 1997-09-23 |
| 5630648 | Dynamic posture chair | Peter B. Allard, Harry C. Sweere | 1997-05-20 |
| 5607202 | Collapsible back support | Victor Toso | 1997-03-04 |
| D369572 | Motivational apparatus | David L. Buck, Ferdinand J. Herpers | 1996-05-07 |
| 5506010 | Motivational device | David L. Buck, Ferdinand J. Herpers | 1996-04-09 |
| D357782 | Hand cart | Ferdinand J. Herpers | 1995-04-25 |
| D309389 | Storage shelf | — | 1990-07-24 |
| 4826265 | Shelving system for musical instrument storage | — | 1989-05-02 |
| D297890 | Adjustable musician's chair | Leslie R. Abraham | 1988-10-04 |
| 4671570 | Stackable adjustable musician's chair | Leslie R. Abraham | 1987-06-09 |