Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4437217 | Composite ceramic heat exchange tube | John W. Bjerklie, Robert A. Penty | 1984-03-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4437217 | Composite ceramic heat exchange tube | John W. Bjerklie, Robert A. Penty | 1984-03-20 |