Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D549346 | Disposable surgical arm board protector | Frederick B. Keen, Warren V. Bigelow | 2007-08-21 |
| D548571 | Oxygen supply bracket for a hospital transport cart | Warren V. Bigelow, Frederick B. Keen | 2007-08-14 |
| D456517 | Anesthesia infection control barrier sheet with pockets | Frederick B. Keen, Warren V. Bigelow | 2002-04-30 |
| D454747 | Disposable plastic sheet anesthesia infection control barrier | Frederick B. Keen, Warren V. Bigelow | 2002-03-26 |