Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4717788 | Method for producing thermoelectric elements | Harry W. Rauch, Sr., Lewis H. Gnau, deceased | 1988-01-05 |
| 4717789 | Thermoelectric elements | Harry W. Rauch, Sr., Lewis H. Gnau, deceased | 1988-01-05 |