Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885263 | Ceramic foam filter and process for preparing same | Leonard S. Aubrey, James E. Dore | 1989-12-05 |
| 4802527 | Apparatus for casting molten metal | Michael A. Cummings | 1989-02-07 |
| 4803025 | Ceramic foam | — | 1989-02-07 |