| 5979988 |
Modular chair construction and method of assembly |
Kurt R. Heidmann, Brian L. Christensen, Michael W. Haan, Glenn A. Knoblock, Eric McClure +6 more |
1999-11-09 |
| 5873634 |
Modular chair construction and method of assembly |
Kurt R. Heidmann, Brian L. Christensen, Micahel W. Haan, Glenn A. Knoblock, Eric McClure +6 more |
1999-02-23 |
| 5782536 |
Modular chair construction and method of assembly |
Kurt R. Heidmann, Brian L. Christensen, Michael W. Haan, Glenn A. Knoblock, Eric McClure +6 more |
1998-07-21 |
| 5755488 |
Chair with adjustable seat |
Gregory S. Beda, Daniel P. Beemer, Diane Ellis, Michelle R. Johnson, Charles P. Roossien |
1998-05-26 |
| D393968 |
Chair |
Kenneth Penning, Robert Peter Arko, Eric McClure, Mark S. Drelles |
1998-05-05 |
| 5630647 |
Tension adjustment mechanism for chairs |
Kurt R. Heidmann, Brian L. Christensen, Michael W. Haan, Glenn A. Knoblock, Eric McClure +6 more |
1997-05-20 |
| 5630649 |
Modular chair construction and method of assembly |
Kurt R. Heidmann, Brian L. Christensen, Brian H. Root, Patrick P. Schwoerer |
1997-05-20 |
| 5328242 |
Chair with back lock |
Russell T. Holdredge |
1994-07-12 |
| 5318346 |
Chair with zero front rise control |
Charles P. Roossien, David C. Pugh, Dale M. Groendal, James E. Massey, Robert Scheper +4 more |
1994-06-07 |
| 5056863 |
Laterally adjustable armrest for a chair |
Larry DeKraker, Thomas R. Demmon |
1991-10-15 |
| 4951995 |
Arm height adjustment mechanism for a chair |
David S. Teppo, Thomas R. Demmon, Larry DeKraker |
1990-08-28 |