Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4642304 | Activated carbon and process for its production | Alfons Karl, Erwin Walter, Peter Kleinschmit, Roland Kutz, Detley Koth | 1987-02-10 |
| 4603119 | Process for production of activated carbon from lignite coke | Alfons Karl, Erwin Walter, Peter Kleinschmit, Roland Kutz, Detlev Koth | 1986-07-29 |