Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6298504 | Lockable two frame convertible sofa bed | — | 2001-10-09 |
| 5956785 | Lockable two frame convertible sofa bed | — | 1999-09-28 |
| 5509151 | Lockable two frame convertible sofa bed | Ralph Rosenow | 1996-04-23 |
| 5327591 | Three frame convertible futon sofa bed | Ralph Rosenow | 1994-07-12 |
| 4996730 | Supported sofa bed recliner | Gary Shaffield | 1991-03-05 |
| 4829611 | Sofa bed recliner | Gary Shaffield | 1989-05-16 |