Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11753364 | Method for producing C2-C4 mono alkanol amines using an acid cation exchanger as a catalyst | Gabriele Iffland, Zeljko Kotanjac, Hermann Luyken, Thomas Krug, Jian Yi +1 more | 2023-09-12 |
| 10889683 | N,N′-diaminopropyl-2-methylcyclohexane-1,3-diamine and N,N′-diaminopropyl-4-methylcyclohexane-1,3-diamine and the use thereof as curing agents for epoxy resins | Alexander Panchenko, Irene GORMAN, Veit Stegmann, Johann-Peter Melder, Norbert Gutfrucht +2 more | 2021-01-12 |
| 10781213 | Methods for preparing bis-tetrahydroisoquinoline-containing compounds | Brian M. Stoltz, Eric R. Welin, Scott C. Virgil, Pamela Tadross, Gerit Maria POTOTSCHNIG +8 more | 2020-09-22 |
| 10774034 | Process for the conversion of ethylene oxide to monoethanolamine and ethylenediamine employing a zeolite | Alvaro Gordillo, Andrei-Nicolae Parvulescu, Armin LANGE DE OLIVEIRA, Andreas KUSCHEL, Juergen Bechtel +3 more | 2020-09-15 |
| 10617993 | Absorbent for the selective removal of hydrogen sulfide | Gerald Vorberg, Ralf Notz, Thomas Ingram, Georg Sieder, Torsten Katz +1 more | 2020-04-14 |
| 10526334 | Methods for preparing bis-tetrahydroisoquinoline-containing compounds | Brian M. Stoltz, Eric R. Welin, Scott C. Virgil, Pamela Tadross, Gerit Maria POTOTSCHNIG +8 more | 2020-01-07 |
| 9512061 | Process for the preparation of racemic alpha-amino acids | Roland Bou Chedid, Alfred Oftring, Wolfgang Staffel, Markus Christian Biel, Johann-Peter Melder | 2016-12-06 |
| 9428443 | Method for producing amino acids | Roland Bou Chedid, Markus Christian Biel, Johann-Peter Melder | 2016-08-30 |