Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643631 | Ink jet recording paper incorporating novel precipitated calcium carbonate pigment | Douglas Ward Donigian, Michael Gregory McFadden | 1997-07-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643631 | Ink jet recording paper incorporating novel precipitated calcium carbonate pigment | Douglas Ward Donigian, Michael Gregory McFadden | 1997-07-01 |