Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5253698 | Combination sand cleaning and heat treating apparatus for sand casted metallic parts and method | John R. Keough, Bela V. Kovacs | 1993-10-19 |
| 4949774 | Expendable cap device to minimize dross inclusions in the vacuum casting process | John R. Keough, Bela V. Kovacs | 1990-08-21 |
| 4648328 | Apparatus and process for the pyrolysis of tires | — | 1987-03-10 |
| 4482316 | Insulated atmosphere furnace | — | 1984-11-13 |