Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8568664 | Modular quad cell electro-mechanical ozone generation device | Ralph M. Francis, Jr., Anthony J. Mastopietro | 2013-10-29 |
| 5124132 | Corona discharge ozone generator | Ralph M. Francis, Jr. | 1992-06-23 |
| 5047744 | High voltage fluid filled transformer | Ralph M. Francis, Jr. | 1991-09-10 |