Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11071387 | Chair | — | 2021-07-27 |
| 10206508 | Chair, in particular office chair | Wilhelm Schulz | 2019-02-19 |
| 10058180 | Chair, in particular office chair | — | 2018-08-28 |
| 10045624 | Lumbar support for a chair, and chair having same | Mark Wiese | 2018-08-14 |
| 8272693 | Tension mechanism for a weight-responsive chair | Jason Wilhelm Hall, Stephen J. Simpson | 2012-09-25 |
| D643640 | Office chair | Nicolai Czumaj-Bront, Michael W. Welsh | 2011-08-23 |
| D618004 | Office chair | Nicolai Czumaj-Bront, Michael W. Welsh | 2010-06-22 |
| D417563 | Chair | Jeffrey J. Osborne | 1999-12-14 |
| D417101 | Chair | Jason S. Lind | 1999-11-30 |
| D398163 | Chair | — | 1998-09-15 |
| 5782534 | Chair with knee support | — | 1998-07-21 |
| D387918 | Chair | — | 1997-12-23 |
| 5664835 | Chair | — | 1997-09-09 |
| 5462336 | Office chair having a support member for shiftably supporting a seat | — | 1995-10-31 |
| 5354125 | Shelf kit | — | 1994-10-11 |
| 5154474 | Stackable line chair | — | 1992-10-13 |
| 5114211 | Chair, in particular an office chair | — | 1992-05-19 |
| 5080435 | Chair | — | 1992-01-14 |
| 5037116 | Foldable chair | — | 1991-08-06 |
| 4865384 | Chair with seat biasing means | — | 1989-09-12 |
| 4792187 | Pivot mechanism for seats | — | 1988-12-20 |
| 4640548 | Chair with an adjustable backrest | — | 1987-02-03 |
| 4369997 | Chair | — | 1983-01-25 |