Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857383 | Synthetic substrate with adhesive metal layer | Johann Greschner, Hans-Joachim Trumpp | 1989-08-15 |
| 4705592 | Process for producing printed circuits | Dieter Bahrle, Jurgen H. Stehling | 1987-11-10 |
| 4642163 | Method of making adhesive metal layers on substrates of synthetic material and device produced thereby | Johann Greschner, Hans-Joachim Trumpp | 1987-02-10 |
| 4556628 | Process for producing printed circuit boards with metallic conductor structures embedded in the insulating substrate | Johann Greschner, Hans-Joachim Trumpp | 1985-12-03 |
| 4540464 | Method of renewing defective copper conductors on the external planes of multilayer circuit boards | Harald Mueller | 1985-09-10 |
| 4521280 | Method of making printed circuits with one conductor plane | Dieter Bahrle | 1985-06-04 |