Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4379131 | Production of phosphorus pentoxide with utilization of reaction heat | Hellmuth Daniel, Bernhard Kuxdorf, Herbert Pusche | 1983-04-05 |
| 4323718 | Arc furnace roof | Otto Buhring, Gerardus J. W. Dreessen, Jacob W. H. Groeneveld, Heinrich Thome, Gerrit J. Willemsen | 1982-04-06 |
| 4251682 | Operation of a lead-in-device receiving a conductor passed through the cover of an electrical precipitation apparatus | Hans-Peter Ebert, Hans Kerber | 1981-02-17 |
| 4219533 | Apparatus for the production of hexagonal phosphorus pentoxide | Gerhard Hartlapp, Werner Kowalski, Theo Dahmen | 1980-08-26 |