Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10479893 | Preparation of iron (III) oxide pigment | Guido Ketteler, Jurgen Kischkewitz | 2019-11-19 |
| 10221326 | Production of red iron oxide pigment | Juergen Kischkewitz, Wolfgang Oehlert, Huajun Li | 2019-03-05 |