Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6023042 | Apparatus for the production of exposed and metallized substrates | Bernd Hensel, Friedrich Hofmann, Manfred Reus, Eberhard Feick | 2000-02-08 |
| 5867460 | Apparatus for laser beam exposure of a substrate disc | Bernd Hensel, Friedrich Hofmann, Paul Kaiser, Eberhard Feick, Franz Richter | 1999-02-02 |
| 5777979 | Apparatus for laser exposure of a substrate disk and a method for the centered mounting of a substrate disk | Bernd Hensel, Friedrich Hofmann, Eberhard Feick, Franz Richter | 1998-07-07 |
| 5667658 | Master for the duplication of sound recordings and process for its production | Wolf-Eckhart Fritsche, Bernd Hensel | 1997-09-16 |
| 5006217 | Arrangement for contacting and holding a mold | — | 1991-04-09 |
| 4861437 | Method of manfacturing a mould and providing it with a backing and mould manufactured according to the invention | Claudia Pechtheiden-Meier | 1989-08-29 |
| 4834843 | Method of marking disc-shaped information carriers | Hans Schuddekopf | 1989-05-30 |
| 4745690 | Method of replenishing and/or preparing treating liquids | Friedrich-Wilhelm A. Thein | 1988-05-24 |
| 4747093 | Disc-shaped information carrier and method of manufacturing it | Karsten Benne, Hans Schuddekopf | 1988-05-24 |
| 4726006 | Disc-shaped information carrier and method of manufacturing it | Karsten Benne, Hans Schuddekopf | 1988-02-16 |
| 4409169 | Method for manufacturing disk-shaped information carriers | Dieter Bartholdsten, Erhard Schrode, Adelbert Zielasek | 1983-10-11 |
| 4342635 | Anode case for a galvanic bath | Joahann Becker, Hans Schueddekopf | 1982-08-03 |