Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5824370 | Process for treating wood | James L. Marcinko, Paul Walcheski | 1998-10-20 |
| 5652023 | Fixation process for heat-fixable preservative treated wood | James L. Marcinko, Paul Walcheski | 1997-07-29 |