| 7547807 |
Method for producing phosphonium salts |
Laszlo Szarvas, Klemens Massonne, Kai Michael Exner, Detlev Glas |
2009-06-16 |
| 6784303 |
Method for continuously acylating chromanol ester derivatives |
Carsten Oost, Gerd Kaibel, Peter D. Schmitt, Jens von Erden |
2004-08-31 |
| 6554965 |
Rectification column for isolating pure substances from high boiling air-and/or temperature sensitive substances |
Horst Hartmann, Wolfram Burst, Wulf Kaiser, Paul Grafen, Bernhard Bockstiegel +1 more |
2003-04-29 |
| 6365758 |
Preparation of tocopheral carboxylates or tocotrienyl esters by acid-catalyzed reaction with carboxylic acids |
Joanna Linda von dem Bussche-Hünnefeld, Hagen Jaedicke, Guido Harms |
2002-04-02 |
| 6111117 |
Process for isolation of pure substances from mixtures of high-boiling air and/or temperature-sensitive substances which require a high separation efficiency by rectification under medium vacuum, and columns suitable for this process |
Horst Hartmann, Wolfram Burst, Wulf Kaiser, Paul Grafen, Bernhard Bockstiegel +1 more |
2000-08-29 |
| 6005122 |
Preparation of .alpha.-tocopherol or .alpha.-tocopheryl acetate by reacting trimethylhydroquinone and phytol or isophytol, with recycling of the zinc halide condensation catalyst |
Kai-Uwe Baldenius, Wulf Kaiser, Bernhard Bockstiegel, Bernhard Schulz, Peter D. Schmitt +1 more |
1999-12-21 |
| 5950454 |
Cloth or cloth-like packing which is subject to low pressure losses and has an ordered structure for use in material-exchange columns and rectification method using such packing |
Wolfram Burst, Horst Hartmann, Wulf Kaiser, Paul Grafen, Bernhard Bockstiegel +1 more |
1999-09-14 |
| 5041572 |
Preparation of 2,3,5-trimethyl-p-benzoquinone |
Ulrich Hoercher, Barbara Jessel, Bernhard Bockstiegel, Paul Grafen |
1991-08-20 |
| 4820874 |
Increasing the yield of 2.5.6-trimethylcyclohex-2-en-1-one |
Peter Tavs, Horst Schauer, Lothar Arnold |
1989-04-11 |
| 4600799 |
Preparation of trimethylhydroquinone |
Franz J. Broecker, Peter Tavs, Wolf-Karlo Aders |
1986-07-15 |
| 4562277 |
Process for the preparation of a bis-salicylidene-alkylene-diaminocobaltous ion complex |
Peter Tavs, Heinz Hannebaum, Manfred Stroezel |
1985-12-31 |
| 4538009 |
Preparation of substituted phenols |
Norbert Goetz, Peter Tavs, Leopold Hupfer, Karl Baer |
1985-08-27 |
| 4301084 |
Process for the preparation of carboxylic acid esters of .beta.-formyl-crotyl alcohol by an allyl rearrangement |
Axel Nissen, Bernd Meissner |
1981-11-17 |
| 4255333 |
Preparation of indolenines |
Hans-Joachim Opgenorth, Horst Scheuermann, Axel Nissen |
1981-03-10 |
| 4240963 |
Preparation of indolenines |
Axel Nissen, Hans-Joachim Opgenorth, Horst Scheuermann, Hans Mueller, Wolfgang Schulte |
1980-12-23 |
