Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5173390 | Water soluble contrast enhancement composition and method of use | John B. Covington, Larry G. Venable, Peter Kim | 1992-12-22 |
| 4997742 | Water soluble contrast enhancement composition with 1-oxy-2 diazonaphthalene sulfonamide salt and polyvinyl alcohol | John B. Covington, Larry G. Venable, Peter Kim | 1991-03-05 |
| 4816380 | Water soluble contrast enhancement layer method of forming resist image on semiconductor chip | John B. Covington, Larry G. Venable, Peter Kim | 1989-03-28 |
| 4758305 | Contact etch method | Thomas D. Bonifield, Rhett B. Jucha, Monte A. Douglas | 1988-07-19 |