Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810582 | Hydrophilic polyurethane composition | Francis E. Gould, Ellen K. Morgan | 1989-03-07 |
| 4798876 | Hydrophilic polyurethane composition | Francis E. Gould, Ellen K. Morgan | 1989-01-17 |