Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357365 | Refractory metal coating method | — | 1982-11-02 |
| 4296352 | Incandescent lamp | Ivan Berlec | 1981-10-20 |
| 4291444 | Process of manufacturing a tungsten lamp filament | John W. Pugh | 1981-09-29 |