Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7130178 | Corona charging device and methods | Timothy Allen Pletcher, David Keller, Wen-Hsin Ho, Eugene S. Poliniak, John Paul Furda +2 more | 2006-10-31 |
| 4720654 | Modular electron gun for a cathode-ray tube and method of making same | Karl G. Hernqvist | 1988-01-19 |
| 4361370 | Apparatus and method for cleaning shadow masks in color picture tubes | Karl G. Hernqvist | 1982-11-30 |