Issued Patents 2003
Showing 1–6 of 6 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 |
| D477151 | Armless ergonomic chair | Marcus C. Koepke, Jay R. Machael, Craig H. Schultz, Erik A. Steffensen, Brian R. Trego +4 more | 2003-07-15 |
| D477164 | Chair back | Marcus C. Koepke, Erik A. Steffensen, Craig H. Schultz, Tim Coffield, Patrick Burgess +1 more | 2003-07-15 |
| D476821 | Ergonomic chair | Marcus C. Koepke, Jay R. Machael, Craig H. Schultz, Erik A. Steffensen, Brian R. Trego +4 more | 2003-07-08 |
| 6572190 | Lumbar support for a chair | Marcus C. Koepke, Jay R. Machael, Matthew J. Phillips, Craig H. Schultz, Erik A. Steffensen | 2003-06-03 |
| 6568760 | Chair of modular construction | Keith L. Davis, Marcus C. Koepke, Jamie Krull, Jay R. Machael, Matthew J. Phillips +4 more | 2003-05-27 |