Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4282597 | Metal-coated plastic housing for electronic components and the method of making same | David L. Yenawine, Richard K. Lowder, Delwin L. Power | 1981-08-04 |
| 4273398 | Method and apparatus for manufacturing gas-filled tubes and the like | David L. Yenawine | 1981-06-16 |