Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9663383 | Process for preparing chromium(III) oxide | Rainer Ortmann, Matthias Stenger, Holger Friedrich | 2017-05-30 |
| 9580333 | Process for preparing chromium(III) oxide | Holger Friedrich, Rainer Ortmann | 2017-02-28 |