Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842147 | Method and apparatus for conductive film detection | William E. Carl | 1989-06-27 |
| 4779739 | Method and apparatus for conductive film detection | William E. Carl | 1988-10-25 |