Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6421576 | Method and device to control an engraving device | — | 2002-07-16 |
| 5866974 | Electron beam generator with magnetic cathode-protection unit | Karl Herrmann, Roland Herb, Wilfried Nisch | 1999-02-02 |
| 5459296 | Method for the low-maintenance operation of an apparatus for producing a surface structure, and apparatus | — | 1995-10-17 |
| 5459297 | Method and apparatus for manufacturing a texture drum | Wolfgang Boppel, Michael Wilharm | 1995-10-17 |
| 5438179 | Method and apparatus for manufacturing texture drums | Wolfgang Boppel, Michael Wilharm | 1995-08-01 |
| 5324912 | Method and apparatus for manufacturing a texture drum | Wolfgang Boppel, Michael Wilharm | 1994-06-28 |