Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4247501 | Marbleization of plastic materials | Richard J. Hoeske, Silvio Petrucci | 1981-01-27 |
| 4183673 | Marbleization of plastic materials | Richard J. Hoeske, Silvio Petrucci | 1980-01-15 |