Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889411 | Process and structure for thin film transistor with aluminum contacts and nonaluminum metallization in liquid crystal displays | Harold G. Parks, William W. Piper, Donald E. Castleberry | 1989-12-26 |
| 4873708 | Digital radiographic imaging system and method therefor | Dominic A. Cusano | 1989-10-10 |
| 4855806 | Thin film transistor with aluminum contacts and nonaluminum metallization | Harold G. Parks, William W. Piper, Donald E. Castleberry | 1989-08-08 |