Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888037 | Glass to metal sealing process | Satish S. Tamhankar, Mark J. Kirschner | 1989-12-19 |
| 4846267 | Enhanced heat transfer surfaces | Walter J. Shattes, Paul C. Krueger | 1989-07-11 |