Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7044454 | Mattress inner spring assembly | Graham Colman, Leonard Patrick Mizra | 2006-05-16 |
| 6601249 | Spring pre-assembly for a mattress foundation unit | Wayne Arnold, Graham Colman | 2003-08-05 |
| 6419212 | Modular spring for a mattress foundation unit | Wayne Arnold, Graham Colman | 2002-07-16 |