Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6846962 | Selective production of o-alkylphenols | Edgar Fuhrmann, Wolfgang Bruggemann | 2005-01-25 |
| 6624334 | Method for production of aryl alkyl ethers | Efim Biller, Edgar Fuhrmann, Detlef Hagena, Heinz Günter Janneck, Lutz Walther | 2003-09-23 |
| 6258985 | Method for removing metal ions from cresol mixtures | Edgar Fuhrmann, Wolfgang Bruggemann | 2001-07-10 |
| 6020494 | Method of purifying quinaldine | Edgar Fuhrmann, Heinz Günter Janneck | 2000-02-01 |
| 5969196 | Process for preparing 3,5-dimethylphenol | Wolfgang Bergins | 1999-10-19 |
| 4992599 | Novel purification process | Bernhard Wefringhaus, Konrad Stolzenberg, Wolfgang Bergins | 1991-02-12 |