Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888400 | Preparation of branched thermoplastic polycarbonate from polycarbonate and polyhydric phenol | Herman O. Krabbenhoft | 1989-12-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888400 | Preparation of branched thermoplastic polycarbonate from polycarbonate and polyhydric phenol | Herman O. Krabbenhoft | 1989-12-19 |