Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6548560 | Process for devulcanization of cured rubbers | Ronald Roy Kovalak | 2003-04-15 |
| 6164571 | Recovery of precious metals from circuit boards | Ronald Roy Kovalak | 2000-12-26 |
| 5891926 | Devulcanization of cured rubber | Ronald Roy Kovalak | 1999-04-06 |