Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346066 | Purification of wet-process phosphoric acid | Reinhard Gradl, Klaus Schrodter, Wolfgang Scheibitz | 1982-08-24 |
| 4321245 | Process for the purification of wet-processed phosphoric acid | Reinhard Gradl, Klaus Schrodter | 1982-03-23 |
| 4313826 | Liquid-liquid extraction apparatus | Reinhard Gradl, Klaus Schrodter | 1982-02-02 |
| 4299803 | Production of alkali metal phosphate solutions free from zinc | Klaus Schrodter, Roelof Mulder | 1981-11-10 |
| 4279876 | Conversion of extraction residues originating from phosphoric acid decontamination to solid deposition products | Klaus Schrodter, Reinhard Gradl, Wolfgang Scheibitz | 1981-07-21 |
| 4271128 | Apparatus for recovering alcoholic phosphoric acid solutions from acid phosphates | Klaus Schrodter, Wolfgang Scheibitz | 1981-06-02 |
| 4222994 | Solvent extraction purification of wet-processed phosphoric acid | Wolfgang Scheibitz, Klaus Schrodter, Gero Heymer | 1980-09-16 |
| 4203956 | Process and apparatus for recovering alcoholic phosphoric acid solutions from acid phosphates | Klaus Schrodter, Wolfgang Scheibitz | 1980-05-20 |
| 4200620 | Decontamination of wet-processed phosphoric acid | Wolfgang Scheibitz, Klaus Schrodter, Gero Heymer | 1980-04-29 |
| 4196180 | Purification of phosphoric acid by means of organic solvents | Bernhard Wojtech, Wolfgang Scheibitz | 1980-04-01 |