Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38301 | Paper coating pigments, their production and use | Philip Martin McGenity, Christopher Nutbeem | 2003-11-11 |
| 6579410 | Pigment materials and their preparation and use | Jonathan Stuart Phipps, Paul Rey, Jose M. Rodriguez, Hannu Olavi Ensio Toivonen | 2003-06-17 |
| 6159381 | Waste paper treatment process | Hannu Olavi Ensio Toivonen | 2000-12-12 |
| 6004467 | Process for the treatment of an aqueous suspension comprising kaolin | — | 1999-12-21 |
| 5833747 | Paper coating pigments and their production and use | Philip Martin McGenity, Christopher Nutbeem | 1998-11-10 |
| 5830364 | Process for the treatment of waste material suspensions | — | 1998-11-03 |
| 5733461 | Process for the treatment of waste material suspensions | Hannu Olavi Ensio Toivonen | 1998-03-31 |
| 5558782 | Recovery of water and solids in a paper mill | Hannu Olavi Ensio Toivonen | 1996-09-24 |
| 5558850 | Precipitated calcium carbonate | Thomas R. Jones | 1996-09-24 |
| 5342600 | Precipitated calcium carbonate | Thomas R. Jones | 1994-08-30 |
| 5232678 | Precipitated calcium carbonate | Thomas R. Jones | 1993-08-03 |
| 4483934 | Process for beneficiating bentonite | Howard Goodman | 1984-11-20 |