Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6120648 | Apparatus for pulping and deinking | Don Scott, Albert S. Kelly, David C. Grantz, Peter Seifert | 2000-09-19 |
| 5762756 | Methods and apparatus for pulping and deinking | Don Scott, Albert F. Kelly, David C. Grantz, Peter Seifert | 1998-06-09 |