Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9556378 | Chelating agent precursors, fluids containing them, and their use | James N. Lepage, Cornelia Adriana De Wolf, Johanna Hendrika Bemelaar, Adrianus Maria Reichwein, Edwin Rudolf Antony Bang | 2017-01-31 |
| 9416095 | Salts, crystals, complexes, and derivatives of threonine diacetic acid, a process to prepare threonine diacetic acid, and the use thereof | Tjerk Oedse Boonstra, Alexey Borisovich ZAITSEV, Martin Heus, Wouter Jan Veenis | 2016-08-16 |
| 9080133 | Glutamic acid N,N-diacetic amide, glutamic acid N-acetic amide N-acetonitrile, alkali metal salts thereof, process to prepare them and their use | Tjerk Oedse Boonstra, Martin Heus, Jim Lepage | 2015-07-14 |
| 6624327 | Process for preparing betaines | Christian Blaufelder, Reinhard Broucek, Ludwig Eisenhuth | 2003-09-23 |
| 6166232 | Process for producing ester quats | Manfred Bergfeld, Hartmut Ahrens | 2000-12-26 |
| 5262566 | Process for the preparation of optically active a-hydroxycarboxylic acids | Klaus-Helmut Mohrs, Dieter Hoppe | 1993-11-16 |