Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7544845 | Process for treating phenol | Gunther Lohmer, Manfred Weber, Markus Weber | 2009-06-09 |
| 7416645 | Continuous process for recovering acetone from a waste stream resulting from acetone purification | Markus Weber | 2008-08-26 |
| 6555719 | Process for the thermal after-treatment of cleavage product from the acid-catalyzed cleavage of cumene hydroperoxide | Reinhard Sigg, Uwe Tanger, Manfred Weber, Hugo H.J.M. Liefooghe | 2003-04-29 |
| 6489519 | Process for removal of impurities from phenol by means of at least one acid catalyst | Heinrich van Barneveld, Otto Gerlich, Wilfried Jordan, Hugo H. J. M. Liefooche | 2002-12-03 |
| 6092041 | System and method of encoding and decoding a layered bitstream by re-applying psychoacoustic analysis in the decoder | Davis Y. Pan | 2000-07-18 |
| 5921089 | Method for the transport and storage of phenol | Werner Kleinloh, Tony van Osselaer, Claus Wulff, Gottfried Zaby | 1999-07-13 |