Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5655576 | Vapor recovery nozzles and sub-assemblies therefor | Donald L. Leininger, Robert W. Guertin | 1997-08-12 |
| 5421382 | Vapor recovery nozzles and sub-assemblies therefor | Donald L. Leininger, Robert W. Guertin | 1995-06-06 |
| 5121777 | Vapor recovery nozzles and sub-assemblies therefor | Donald L. Leininger, Robert W. Guertin | 1992-06-16 |