Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658677 | Image carrier material for electrophotographic processes | Reiner Gumbiowski, Hartmut Schulz | 1997-08-19 |
| 5614345 | Paper for thermal image transfer to flat porous surface | Rainer Gumbiowski, Hartmut Schulz | 1997-03-25 |