Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837258 | Fire retardant impact modified carbonate polymer composition | Michael K. Laughner | 1989-06-06 |
| 4826900 | Ignition resistant modified carbonate polymer composition | Thoi H. Ho | 1989-05-02 |