Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4434816 | Service line interior by-pass fitting | Bernard A. Di Giovanni | 1984-03-06 |
| 4427031 | Method of installing an interior by-pass liner | Bernard A. Di Giovanni | 1984-01-24 |
| 4427032 | Service line interior by-pass | Bernard A. Di Giovanni | 1984-01-24 |
| 4427112 | Service line interior by-pass kit | Bernard A. Di Giovanni | 1984-01-24 |
| 4377945 | Service line interior by-pass | Bernard A. Di Giovanni | 1983-03-29 |