Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4946711 | Masking compositions and method for applying the same | Fred D. Hawker, Victor E. Pietryga, James Wichmann, Patricia A. Nicpon | 1990-08-07 |
| 4806390 | Masking compositions for chemical milling and method for applying the same | Fred D. Hawker, Victor E. Pietryga | 1989-02-21 |