Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889411 | Process and structure for thin film transistor with aluminum contacts and nonaluminum metallization in liquid crystal displays | William W. Piper, George E. Possin, Donald E. Castleberry | 1989-12-26 |
| 4855806 | Thin film transistor with aluminum contacts and nonaluminum metallization | William W. Piper, George E. Possin, Donald E. Castleberry | 1989-08-08 |