Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5676173 | In-line venturi | Helmut Gerhard Conrad, Richard Stanley Phillips, Andrew Richard Henry Phillips, Gerald Earl Bowman, Michael John Preston | 1997-10-14 |
| 5630990 | Ozone generator with releasable connector and grounded current collector | Richard Stanley Phillips, Andrew Richard Henry Phillips, Raymond Earl Bowman, Helmut Gerhard Conrad | 1997-05-20 |