Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6061074 | Ion generator for ionographic print heads | Johann W. Bartha, Frank Druschke, Johann Greschner | 2000-05-09 |
| 5980683 | Production of a support element module for embedding into smart cards or other data carrier cards | Wolfgang Beck, Reinhold Braun, Roland Diemer, Frank Druschke, Harald Gruber +2 more | 1999-11-09 |
| 5939893 | Contact probe arrangement for functional electrical testing | Johann Greschner, Roland Stoehr | 1999-08-17 |
| 5923511 | Directly contactable disk for vertical magnetic data storage | Upali Bandara, Arved Brunsch | 1999-07-13 |
| 5863636 | Adhesive bond for densely ordered elements | Frank Druschke, Johann Greschner, Roland Stoehr | 1999-01-26 |
| 4732646 | Method of forming identically positioned alignment marks on opposite sides of a semiconductor wafer | Johann Greschner, Holger Hinkel | 1988-03-22 |
| 4724392 | System for testing magnetic head/disk interfaces | Upali Bandara, Volker Heinrich, Holger Hinkel, Artur Lang, Erwin J. Prinz +2 more | 1988-02-09 |
| 4689260 | Abrasion-resistant magnetic recording disk | Marian Briska, Holger Hinkel | 1987-08-25 |