Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D647348 | Inflatable cushion insert | — | 2011-10-25 |
| D647346 | Inflatable cushion insert | — | 2011-10-25 |
| D647347 | Inflatable cushion insert | — | 2011-10-25 |
| D646100 | Inflatable cushion insert | — | 2011-10-04 |
| 6687936 | Valve for zoned cellular cushion | Robert W. Graebe, Paul A. Rickman, Dennis L. Clapper | 2004-02-10 |
| 6564410 | Valve for zoned cellular cushion | Robert W. Graebe, Paul A. Rickman | 2003-05-20 |
| 5123475 | Drape construction | Martha M. Oliver | 1992-06-23 |