Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4560518 | Process for the continuous production of 2-carboxyethyl-alkyl-phosphinic acid dialkylesters | Klaus Gehrmann, Johannes Rosenthal | 1985-12-24 |
| 4549995 | Process for making alkanephosphonous acid esters | Eberhard Auer, Klaus Gehrmann, Johannes Rosenthal | 1985-10-29 |
| 4518538 | Process for making methyldichlorophosphane | Klaus Gehrmann, Johannes Rosenthal, Stefan Schafer | 1985-05-21 |
| 4440925 | Process for making fine particulate non-agglomerating chloropolyethylene | Hans W. Keuper, Horst Semmler, Joachim Hardel, Hermann Vierling, Robert Willms | 1984-04-03 |
| 4391972 | Continuous removal of residual hydrocarbons from polyolefins | Karl Kaiser | 1983-07-05 |
| 4318865 | Production of 2-chloroformylethylmethylphosphinic acid chlorides | Hubert Neumaier, Klaus Gehrmann | 1982-03-09 |
| 4261923 | Process permitting the deposition of solid matter in mixtures containing methyldichlorophosphane to be inhibited | Klaus Gehrmann, Eberhard Auer, Stefan Schafer | 1981-04-14 |
| 4209460 | Production of pure acetyl chloride | Eberhard Auer, Klaus Gehrmann | 1980-06-24 |
| 4206078 | Production of space abrasion-resistant active carbon carriers or catalysts | Klaus Gehrmann, Hermann Vierling | 1980-06-03 |