Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5085707 | Defined and delaminated kaolin product | John A. Manasso, Joseph P. Berberich | 1992-02-04 |
| 4943324 | High performance paper filler and method of producing same | John A. Manasso, Joseph P. Berberich | 1990-07-24 |