Issued Patents 2003
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6669292 | Ergonomic chair | Marcus C. Koepke, Jamie Krull, Jay R. Machael, Tim Coffield, Keith L. Davis +6 more | 2003-12-30 |
| 6634711 | Adjustable chair seat with locking mechanism | Matthew J. Phillips, Jay R. Machael | 2003-10-21 |
| 6616231 | Multi-position tilt-limiting mechanism | Marcus C. Koepke, Jay R. Machael | 2003-09-09 |
| D477162 | Chair control lever | Marcus C. Koepke, Jay R. Machael | 2003-07-15 |
| D477151 | Armless ergonomic chair | Marcus C. Koepke, Jay R. Machael, Craig H. Schultz, Douglas A. Schroeder, Erik A. Steffensen +4 more | 2003-07-15 |
| D476821 | Ergonomic chair | Marcus C. Koepke, Jay R. Machael, Craig H. Schultz, Douglas A. Schroeder, Erik A. Steffensen +4 more | 2003-07-08 |
| 6568760 | Chair of modular construction | Keith L. Davis, Marcus C. Koepke, Jamie Krull, Jay R. Machael, Matthew J. Phillips +4 more | 2003-05-27 |