Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6578213 | Stackable bedding foundation | — | 2003-06-17 |
| 5752284 | Spring to metal rail connection | John P. Kitchen, William C. Rodgers | 1998-05-19 |
| 5704595 | Nestably stackable formed wire foundation | John P. Kitchen | 1998-01-06 |
| 5438716 | Box spring assembly with improved spring installation capabilities | — | 1995-08-08 |
| 5401007 | Wire spring assemblies made of nestably stackable half units | William C. Rodgers | 1995-03-28 |
| 5395097 | Spring wire core made of nestably stackable half units | William C. Rodgers | 1995-03-07 |
| 5346190 | Box spring assembly support spring | — | 1994-09-13 |
| 5246210 | Grid and spring subassembly for box springs | William C. Rodgers | 1993-09-21 |
| 5188344 | Formed wire box spring with grid lock system | — | 1993-02-23 |
| 5165667 | Box spring assembly with crosswires having integral sinuous end springs | — | 1992-11-24 |
| 5080329 | Spring loaded locking system for box spring assemblies | — | 1992-01-14 |
| 4932535 | Formed wire spring element for box spring assemblies | — | 1990-06-12 |
| 4907785 | Limited deflection spring | — | 1990-03-13 |
| 4891853 | Box spring assembly | — | 1990-01-09 |
| 4867424 | Box spring with wire columns and partial coils | — | 1989-09-19 |
| 4861002 | Spring module with improved mounting foot structure | — | 1989-08-29 |
| 4779292 | Box spring cross rail incorporating extruded thrust bearing | — | 1988-10-25 |
| 4779293 | Formed wire box spring with spring wire deck | John P. Kitchen | 1988-10-25 |
| 4739977 | Box spring assembly | — | 1988-04-26 |
| 4212494 | Rocker reclining chair with multi-position rocker lock | — | 1980-07-15 |