Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7406733 | Elastomeric fabric load bearing surface | Daniel Sommerfeld, Joseph D. Ward | 2008-08-05 |
| 7159293 | Load bearing fabric attachment and associated method | Ronnie K. Watson, Soren S. Ingomar Petersen, Matthew E. Chrostowski, Randall Clark Lewis | 2007-01-09 |
| 7096549 | Carrier and attachment method for load-bearing fabric | — | 2006-08-29 |
| 7029071 | Office chair | Ronnie K. Watson, Anthony K. Chapman, Matthew E. Chrostowski, Randall Clark Lewis, James W. Bach +3 more | 2006-04-18 |
| 7021718 | Method and apparatus for attaching accessories to load-bearing fabric | Tanja Krstov | 2006-04-04 |
| 6966604 | Chair with a linkage assembly | William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Randy J. Sayers +4 more | 2005-11-22 |
| 6966606 | Carrier and attachment method for load bearing fabric | — | 2005-11-22 |
| 6955402 | Office chair | Douglas M. VanDeRiet, Daniel Raether, Jeff Weber, Todd David Krupiczewicz, Robert Nyhuis | 2005-10-18 |
| 6899398 | Carrier and attachment method for load-bearing fabric | — | 2005-05-31 |
| 6842959 | Load bearing fabric attachment and associated method | Ronnie K. Watson, Soren S. Ingomar Petersen, Matthew E. Chrostowski, Randall Clark Lewis | 2005-01-18 |
| 6733080 | Seating structure having a backrest with a flexible membrane and a moveable armrest | William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Randy J. Sayers +2 more | 2004-05-11 |
| 6726286 | Seating structure having a fabric with a weave pattern | William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Randy U. Sayers +2 more | 2004-04-27 |
| 6722741 | Seating structure having a backrest with a bowed section | William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Randy J. Sayers +2 more | 2004-04-20 |
| 6702390 | Support assembly for a seating structure | William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Randy J. Sayers +2 more | 2004-03-09 |
| 6688690 | Office chair | Ronnie K. Watson, Anthony K. Chapman, Matthew E. Chrostowski, Randall Clark Lewis, James W. Bach +3 more | 2004-02-10 |
| 6588842 | Backrest | William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Randy J. Sayers +2 more | 2003-07-08 |
| 6540950 | Carrier and attachment method for load bearing fabric | — | 2003-04-01 |
| 6511562 | Bonding strip for load bearing fabric | — | 2003-01-28 |
| 6386634 | Office chair | William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Randy J. Sayers +4 more | 2002-05-14 |
| 6125521 | Process for making an office chair | William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Randy J. Sayers +2 more | 2000-10-03 |
| 6059368 | Office chair | William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Randy J. Sayers +2 more | 2000-05-09 |
| 6035901 | Woven fabric membrane for a seating surface | William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Randy J. Sayers +2 more | 2000-03-14 |
| 6019428 | Seat bolster adjustment assembly | — | 2000-02-01 |
| 5938284 | Seat bolster adjustment assembly | — | 1999-08-17 |
| 5772282 | Tilt control mechanism for a chair | William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Randy J. Sayers +4 more | 1998-06-30 |