Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8365953 | Caulking gun having adjustable handle and actuating and restraining mechanism | Rafael A. Calvo | 2013-02-05 |
| 8006867 | Caulking gun | Rafael A. Calvo | 2011-08-30 |
| 6767161 | Highway electric power generator | Rafael A. Calvo | 2004-07-27 |