Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352661 | Shaft kiln | James Hill | 1982-10-05 |
| 4231978 | High density low porosity refractory product and process for making the same | — | 1980-11-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352661 | Shaft kiln | James Hill | 1982-10-05 |
| 4231978 | High density low porosity refractory product and process for making the same | — | 1980-11-04 |