Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8074745 | Tool for crushing coke | Wolfgang Paul, Maciej Barcikowski, Dirk Heidemann | 2011-12-13 |
| 8074746 | Tool for crushing coke | Wolfgang Paul, Maciej Barcikowski, Dirk Heidemann | 2011-12-13 |