Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4990288 | Control of disalt in .alpha.-sulfofatty acid ester surfactants | Robert Piorr, Guenter Panthel, Karl Schmid, Dietmar Colignon, Hans J. Rommerskirchen +1 more | 1991-02-05 |
| 4981617 | Process for the preparation of reaction products of epoxidized ricinoleic acid glycerides with sulfur trioxide | Bernd Fabry, Robert Piorr, Frank Clasen, Hans Bornmann | 1991-01-01 |
| 4820451 | Process for the production of mobile pastes of washing-active .alpha.-sulfofatty acid ester salts of high solids content | Robert Piorr, Hans J. Rommerskirchen, Frantisek Jost | 1989-04-11 |
| 4695409 | Control of disalt in .alpha.-sulfofatty acid ester surfactants | Robert Piorr, Guenter Panthel, Karl Schmid, Dietmar Colignon, Hans J. Rommerskirchen +1 more | 1987-09-22 |
| 4668438 | Aqueous concentrates of salts of .alpha.-sulfonated fatty acid alkyl esters | Robert Pierr, Frantisek Jost, Hans J. Rommerskirchen | 1987-05-26 |