Issued Patents All Time
Showing 76–100 of 117 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6583281 | Stabilized N-alkenyllactam | Arnd Bottcher, Rudolf Erich Lorenz, Hansjörg Nickel, Jihong He | 2003-06-24 |
| 6521763 | Method for producing gamma-butyrolactone | Rolf Fischer | 2003-02-18 |
| 6433229 | Method of producing cyclic, &agr;, &bgr;-unsaturated ketones | Rolf Fischer | 2002-08-13 |
| 6433192 | Method for producing mixtures of 1,4-butanediol, tetrahydrofuran and &ggr;-butyrolactone | Rolf Fischer, Gerd Kaibel, Ralf-Thomas Rahn | 2002-08-13 |
| 6426438 | Method for producing 1,6-hexanediol and 6-hydroxycaproic acid or their esters | Rolf Fischer, Frank Stein | 2002-07-30 |
| 6407294 | Method for producing 1,6-hexanediol | Boris Breitscheidel, Frank Stein, Shelue Liang, Rolf Fischer | 2002-06-18 |
| 6387224 | Method for distilling mixtures containing butanediol | Rolf Fischer, Shelue Liang | 2002-05-14 |
| 6384216 | Purification of alkenyl compounds | Rudolf Erich Lorenz, Arnd Bottcher | 2002-05-07 |
| 6350924 | Method for producing 1,4-butanediol | Rolf Fischer, Gerd Kaibel, Ralf-Thomas Rahn | 2002-02-26 |
| 6350923 | Hydrogenation of aldehydes | Karsten Eller, Peter Wahl | 2002-02-26 |
| 6329532 | Method for separating maleic anhydride from maleic anhydride-containing mixtures by stripping | Ralf-Thomas Rahn | 2001-12-11 |
| 6316640 | Preparation of tetrahydrofuran | Rolf Fischer, Shelue Liang | 2001-11-13 |
| 6316659 | Method for producing cyclopentanone and cyclopentene-1-carboxylic acid and their esters | Rolf Fischer, Shelue Liang, Frank Stein | 2001-11-13 |
| 6313358 | Method for producing hexanediol | Boris Breitscheidel, Frank Stein | 2001-11-06 |
| 6303836 | Method for producing 2-cyclododecyl-1-propanol | Klaus Ebel | 2001-10-16 |
| 6284917 | Method for hydrogenating benzene polycarboxylic acids or derivatives thereof by using a catalyst containing macropores | Melanie Brunner, Arnd Bottcher, Boris Breitscheidel, Klaus Halbritter, Jochem Henkelmann +1 more | 2001-09-04 |
| 6284932 | Method for producing alcohols containing cycloaliphatic groups | Rolf Fischer, Joachim Wulff-Doring | 2001-09-04 |
| 6262317 | Process for preparing 1,4-butanediol by catalytic hydrogenation of 1,4-butinediol | Rainer Becker, Franz Josef Brocker, Gerd Kaibel, Joachim Wulff-Doring | 2001-07-17 |
| 6245948 | Preparation of tetrahydrofuran from dialkoxybutenes | Rolf Fischer, Martin Schäfer, Arthur Hohn, Peter Schwab | 2001-06-12 |
| 6204417 | Method for producing aliphatic alcohols | Rolf Fischer, Joachim Wulff-Doring | 2001-03-20 |
| 6194624 | Hydrogenation of polyenes to monoenes | — | 2001-02-27 |
| 6169189 | Process for preparing tetrahydrofuran from dialkoxybutenes | Rolf Fischer, Martin Schäfer, Arthur Hohn, Peter Schwab | 2001-01-02 |
| 6103939 | Process for the preparation of 1,4-butanediol monoethers | Rolf Fischer, Martin Schäfer, Arthur Hohn, Peter Schwab | 2000-08-15 |
| 6093857 | Preparation of cyclopentanols | Rolf Fischer, Norbert Rieber, Michael Schulz, Joaquim Henrique Teles | 2000-07-25 |
| 6008418 | Process for preparing 1,6 hexanediol with a level of purity over 99% | Karl Baur, Rolf Fischer, Frank Stein, Harald Rust, Boris Breitscheidel | 1999-12-28 |