Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5813339 | Cartridge for refilling a printing cartridge with ink | Kurt Moser, Friedhelm Czeranski, Christian Geiermann | 1998-09-29 |
| 5039587 | Oxide-coated carriers and preparation and use thereof | Erwin Czech, Werner Ostertag, Detlef Schulze-Hagenest | 1991-08-13 |
| 4925762 | Carrier for reprography and production of this carrier | Werner Ostertag, Erwin Czech, Detlef Schulze-Hagenest | 1990-05-15 |
| 4803143 | Colored single-component toners and their preparation | Werner Ostertag, Erwin Czech, Detlef Schulze-Hagenest | 1989-02-07 |
| 4296150 | Transparent image marking sheet for projection systems | Norbert Mecke, Karl-Heinz Schrader, Heinke Blutschkau | 1981-10-20 |