Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6004619 | Process for manufacturing printed circuit boards | Siegfrid Dippon | 1999-12-21 |
| 5666722 | Method of manufacturing printed circuit boards | Wilhelm Tamm, Siegfrid Dippon, Michael Weitmann, Si-Ty Lam | 1997-09-16 |