Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5103877 | Vapor-liquid separator for evaporative emissions control system | Carl H. Sherwood | 1992-04-14 |
| 4893643 | Tank vapor vent valve assembly with improved overfill protection | William E. Gifford, Carl H. Sherwood, Charles H. Covert | 1990-01-16 |