Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12152158 | Graphite lead or graphite chalk or graphite block, pencil with graphite lead, and method for producing a graphite lead or graphite chalk or graphite block | Reiner Appel, Silke Bachmann, Gerhard Lugert | 2024-11-26 |
| 8703231 | Lead for painting and method of painting with a lead | Gerhard Lugert, Reiner Appel, Harald Von Godin | 2014-04-22 |
| 6579530 | Cosmetic powder pencil or powder chalk | Reiner Appel, Harald Von Godin, Gerhard Lugert | 2003-06-17 |