Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10799028 | Chairs including flexible frames | Nils Koehn, Jay R. Machael, Douglas A. Schroeder | 2020-10-13 |
| 9572432 | Flexible back support member with integrated recline stop notches | Nils Koehn, Corey Susie, John Koch, Phillip Minino | 2017-02-21 |
| 8567864 | Flexible back support member with integrated recline stop notches | Nils Koehn, Corey Susie, John Koch, Phillip Minino | 2013-10-29 |
| D634558 | Chair | — | 2011-03-22 |
| 7226127 | Ergonomic chair backrest | Vladimir Yevko, Eugene Eliseev | 2007-06-05 |
| 6752459 | Adjustable chair | — | 2004-06-22 |
| D448953 | Chair base | — | 2001-10-09 |