Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830909 | Scratch resistant recording materials for electroerosion printing comprising cross-linked polymer base layer | Mitchell S. Cohen, John C. S. Shen, Keith S. Pennington | 1989-05-16 |
| 4826564 | Method of selective reactive ion etching of substrates | Brian H. Desilets, Richard D. Kaplan, Harbans S. Sachdev, Susan Sanchez | 1989-05-02 |