Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5348657 | Process for the separation of catalyst-free working solution from the hydrogenation circuit of the anthraquinone process for the production of hydrogen peroxide | Hubert Eickhoff, Rudiger; Schirrmacher, Karl-Heinz Mangartz, Ralf Godecke | 1994-09-20 |