Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5124185 | Vacuum insulating unit | Thomas P. Kerr, Shaow B. Lin, Peter Harmon, William R. Siskos, Paul E. Shaffer | 1992-06-23 |
| 4423835 | Method of imposing a damage free score in a refractory piece | Charles J. Hyatt | 1984-01-03 |
| 4196830 | Method of and apparatus for preventing premature severing of scored ribbon edges | John R. Dahlberg | 1980-04-08 |