Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4434148 | Working up of the residual gases resulting from the production of cyanuric chloride | Gerhard Bach, Friedhelm Geiger, Werner Heimberger, Horst Hillenbrand | 1984-02-28 |
| 4413021 | Process for bringing liquids into contact | Klaus Hentschel, Friedrich Bittner, Georg Franz | 1983-11-01 |
| RE31381 | Process for the preparation of propylene oxide | Gunter Prescher, Otto Weiberg, Rolf Wirthwein, Helmut Waldmann, Hermann Seifert +2 more | 1983-09-13 |
| 4387081 | Process for the production of hydrogen cyanide | Carl Voigt, Peter Kleinschmit, Gerhard Sperka | 1983-06-07 |
| 4377344 | Apparatus for bringing liquids in contact | Klaus Hentschel, Friedrich Bittner, Georg Franz | 1983-03-22 |
| 4341709 | Preparation of .epsilon.-caprolactone | Willi Hofen, Herbert Klenk, Otto Weiberg, Helmut Waldmann, Hermann Seifert +2 more | 1982-07-27 |
| RE30945 | Process for the preparation of propylene oxide | Guter Prescher, Otto Weiberg, Rolf Wirthwein, Helmut Waldmann, Hermann Seifert +2 more | 1982-05-25 |
| 4314064 | Process for the production of nicotinamide | Helmut Beschke, Heinz Friedrich, Klaus Muller | 1982-02-02 |
| 4303621 | Process for the recovery of methionine and potassium bicarbonate | Theodor Lussling, Klaus Muller, Ferdinand Theissen | 1981-12-01 |
| 4271297 | Process for the production of suspension or solutions of cyanuric chloride in organic solvents (I) | Klaus Hentschel, Friedrich Bittner | 1981-06-02 |
| 4269979 | Process for the production of suspension or solution of cyanuric chloride in organic solvents (II) | Klaus Hentschel, Friedrich Bittner | 1981-05-26 |
| 4239696 | Process for the production of alkyl sulfonic acids | Friedhelm Geiger, Jorg Hensel | 1980-12-16 |
| 4237299 | Process for the recovery of pyridine and 3-methylpyridine | Helmut Beschke, Franz-Ludwig Dahm, Heinz Friedrich | 1980-12-02 |
| 4228084 | Process for the production of glycidyl methacrylate | Rolf Ackermann, Heinz Kolb, Gerhard Morlock | 1980-10-14 |
| 4197161 | Process for the recovery of catalysts in the epoxidation and hydroxylation of olefinic compounds | Heinz Friedrich, Wolfgang Heim, Axel Kleemann, Heinz Kolb | 1980-04-08 |