Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7002053 | Method for preparing high-purity diisobutene | Lothar Kerker, Udo Peters, Wilfried Buschken, Andreas Beckmann | 2006-02-21 |
| 6482992 | Multistage process for the preparation of oxo aldehydes and/or alcohols | Bernhard Scholz, Alfred Kaizik, Dieter Hess, Wilfried Bueschken, Klaus-Diether Wiese +2 more | 2002-11-19 |
| 6407295 | Process for preparing higher oxo alcohols from olefin mixtures | Alfred Kaizik, Bernhard Scholz, Walter Toetsch, Martin Trocha, Wilfried Bueschken | 2002-06-18 |
| 6331657 | Process for preparing higher oxo alcohols from olefin mixtures by two-stage hydroformylation | Alfred Kaizik, Bernhard Scholz, Walter Toetsch, Wilfried Bueschken | 2001-12-18 |
| 5998685 | Process for preparing butene oligomers from field butanes | Paul Olbrich, Wilhelm Droste, Richard H. Mueller, Walter Toetsch | 1999-12-07 |
| 5993763 | Catalyst and process for decomposing HCN in gases | Alfred Kaizik, Dietrich Maschmeyer | 1999-11-30 |
| 5994601 | Process for preparing butene oligomers from Fischer-Tropsch olefins | Walter Toetsch, Paul Olbrich, Wilhelm Droste, Richard H. Mueller | 1999-11-30 |
| 5912191 | Process for preparing alkyl tert-butyl ethers and di-n-butene from field butanes | Paul Olbrich, Wilhelm Droste, Richard H. Mueller, Walter Toetsch | 1999-06-15 |
| 5864052 | Process for preparing alkyl tert-butyl ethers and di-n-butene from field butanes | Paul Olbrich, Wilhelm Droste, Richard H. Mueller, Walter Toetsch | 1999-01-26 |
| 5518699 | Method of carrying out chemical reactions in reaction distillation columns | John Kashnitz, Frank Steding, Alfred Oberholz, Bernd Nowitzki | 1996-05-21 |
| 5177282 | Oligomerization of olefins | Joachim Neumeister, Thomas Wildt, Wilhelm Droste, Fritz Obenaus | 1993-01-05 |
| 5146039 | Process for low level desulfurization of hydrocarbons | Thomas Wildt, Wilhelm Droste, Joachim Neumeister, Bernhard Scholz | 1992-09-08 |
| 4517395 | Process for the selective hydrogenation of polyunsaturated hydrocarbons in hydrocarbon mixtures | Fritz Obenaus, Otto Reitemeyer, Bernhard Scholz | 1985-05-14 |
| 4335018 | Catalyst for the production of maleic anhydride | Gerhard Franz, Hans-Josef Ratajczak | 1982-06-15 |
| 4268448 | Process for the production of maleic anhydride | Gerhard Franz, Hans-Josef Ratajczak | 1981-05-19 |