Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5525120 | Degreasing process | Rudolf Zauns-Huber, Alfred Meffert, Wolfgang Prinz, Fredi Wolter | 1996-06-11 |
| 5292910 | Use of hydrophobized hydrotalcites as catalysts for ethoxylation or propoxylation | Hans-Christian Raths, Wolfgang Breuer, Klaus Friedrich | 1994-03-08 |
| 5069817 | Process for making polyoxyethylene surfactants with desirable low temperature behavior | Karl Schmid, Alfred Meffert, Klaus Friedrich, Michael Langen | 1991-12-03 |
| 4967017 | Alcohol ethoxylates of reduced EO content or residual PO content | Karl Schmid, Alfred Meffert, Klaus Friedrich, Michael Langen | 1990-10-30 |
| 4895681 | Fatty acid esters of polyglycerol polyglycol ethers, their production and use | Leonhard Wittich | 1990-01-23 |
| 4745231 | Alkylene oxide block polymers usable as defoamers | Fritz Lange, Rainer Hoefer, Karl Schmid, Adolf Asbeck | 1988-05-17 |
| 4371614 | E.Coli bacteria carrying recombinant plasmids and their use in the fermentative production of L-tryptophan | David M. Anderson, Ronald Somerville | 1983-02-01 |