Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4399250 | Material for treating coke oven doors and jambs to prevent the build up of tar thereon | — | 1983-08-16 |
| 4355788 | Hot metal runner system with air pollution controls | — | 1982-10-26 |
| 4300753 | Hot metal runner system with air pollution controls | — | 1981-11-17 |
| 4186908 | Expandable hot top for ingot moulds | Joseph A. Perri | 1980-02-05 |