Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6284099 | Sizing of paper | Peter Peutherer, Lesley Collett | 2001-09-04 |
| 4181567 | Paper manufacture employing filler and acrylamide polymer conglomerates | Martin Riddell | 1980-01-01 |