Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5755980 | Process for eliminating adsorbable organic halogen compounds from wastewater | Joachim Semel | 1998-05-26 |
| 5507304 | Polymer blend composed of cellulose acetate and starch acetate used to form fibers, films and plastic materials and a process to prepare said blend | Joanne C. Maheras, John B. Hopkins, Jr. | 1996-04-16 |
| 5326906 | Process for the extractive removal of phospho- and sulfobetaines from acidic reaction solutions | Matthias Krull, Gernot Kremer, Christoph Porz | 1994-07-05 |
| 5153355 | Process for the extractive separation of L-phosphinothricin and L-glutamic acid in aqueous solution | Hilmar Mildenberger, Harald Knorr, Arno Schulz | 1992-10-06 |
| 5068358 | Process for extracting N-methyl-2-pyrrolidone | Georg-Emerich Miess, Karl-Heinz Schwarz, Bernhard Wojtech | 1991-11-26 |
| 5047377 | Process for the purification and recovery of the contaminated solution of the catalyst produced on carbonylation of methanol and/or methyl acetate and/or dimethyl ether | Heinz Erpenbach, Eitel Goedicke, Winfried Lork | 1991-09-10 |
| 5013444 | Process for separating off enol ethers from reaction mixtures containing alcohols | Hilmar Mildenberger, Stephen Lachhein, Siegbert Rittner | 1991-05-07 |
| 4986974 | Process for the separation of halogenated hydrocarbons from hydrochloric acid | Wilhelm Lendle, Wolfgang Scheibitz, Bernhard Wojtech | 1991-01-22 |