Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5849818 | Skin sulfonated particles in matrices | Wilhelm E. Walles | 1998-12-15 |
| 5478540 | Removal of mercury heavy metal values employing sulfur trioxide | Wilhelm E. Walles | 1995-12-26 |
| 4728566 | High-frequency lamination of polymer foams | Gerald M. Lancaster | 1988-03-01 |
| 4671992 | High frequency lamination of polymer foams | Gerald M. Lancaster | 1987-06-09 |