Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4385041 | Process for making aqueous alkali metal phosphate solutions | Klaus Jodden | 1983-05-24 |
| 4368179 | Process for the oxidation of alkali metal phosphites | Gunther Shimmel, Hasso Scott | 1983-01-11 |
| 4355010 | Process for removing phosphorus in vapor form and phosphanes from gas mixtures | Klaus Jodden, Friedrich-Wilhelm Dorn, Hans-Werner Stephan | 1982-10-19 |
| 4351960 | Production of an isomeric mixture of secondary phosphines | Georg Elsner, Hartfrid Vollmer | 1982-09-28 |
| 4346065 | Process for the manufacture of finely dispersed sparingly soluble salts of oxyacids of phosphorus | Alexander Maurer, Renate Adrian | 1982-08-24 |
| 4330504 | Apparatus for making red phosphorus | Klaus Lehr, Hans-Werner Stephan, Ursus Thummler | 1982-05-18 |
| 4320108 | Process for the removal of metals from carbon black | Manfred Wolter | 1982-03-16 |
| 4294621 | Production of an anticorrosive pigment on phosphate basis | Alexander Maurer, Renate Adrian, Klaus Hestermann | 1981-10-13 |
| 4294808 | Production of anticorrosive pigments containing phosphorus | Horst-Dieter Wasel-Nielen, Renate Adrian, Herbert Panter, Alexander Maurer, Raban von Schenck | 1981-10-13 |
| 4279878 | Process for freeing phosphoric acid from organic contaminants | Alexander Maurer, Klaus Schrodter | 1981-07-21 |
| 4278647 | Production of phosphorous acid | Klaus Jodden, Hans-Werner Stephan | 1981-07-14 |
| 4273752 | Process for making red phosphorus | Klaus Lehr, Hans-Werner Stephan, Ursus Thummler | 1981-06-16 |
| 4258022 | Continuous production of phosphine | Georg Elsner, Werner Klose, Christian May | 1981-03-24 |
| 4222994 | Solvent extraction purification of wet-processed phosphoric acid | Klaus-Peter Ehlers, Wolfgang Scheibitz, Klaus Schrodter | 1980-09-16 |
| 4200620 | Decontamination of wet-processed phosphoric acid | Klaus-Peter Ehlers, Wolfgang Scheibitz, Klaus Schrodter | 1980-04-29 |