Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814049 | Plating bath composition for copper-tin-zinc alloy | Raymond L. Helton, Douglas W. Trobough | 1989-03-21 |
| 4496438 | Bath composition and method for copper-tin-zinc alloy electroplating | Raymond L. Helton, Douglas W. Trobough | 1985-01-29 |