Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5307188 | Color liquid crystal display with dead front appearance having opaque mask formed on the primary display | Richard B. Dingwall, Lowell W. Knapp, John H. Steele, Virgil Joseph Hull | 1994-04-26 |
| 5220442 | Method of making color liquid crystal display with dead front appearance | Richard B. Dingwall, Lowell W. Knapp, John H. Steele, Virgil Joseph Hull | 1993-06-15 |