Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6395935 | Use of phosphoric acid as a homogeneous catalyst during the preparation of ketene | Thomas Schäfer | 2002-05-28 |
| 6355149 | Method for producing a membrane used to operate fuel cells and electrolyzers | Thomas Soczka-Guth, Georg Frank, Rüdiger Knauf | 2002-03-12 |