Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828596 | Use of glass enamel coating compositions as an anti-sticking agent | — | 1989-05-09 |
| 4822396 | Method of shaping a coated glass sheet on a shaping die | Robert M. Sullivan | 1989-04-18 |