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Patent applications and USPTO patent grants for Greiving; Helmut.The latest application filed is for "method for cleaning 3-hydroxyamidinophenylalanine derivatives by the precepitation and recrystallization of salt and an aromatic sulfonic acid".
Patent | Date |
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Method for preparing and purifying 3-hydroxyamidinophenylalanine compounds Grant 7,951,943 - Greiving May 31, 2 | 2011-05-31 |
Method for Cleaning 3-Hydroxyamidinophenylalanine Derivatives by the Precepitation and Recrystallization of Salt and an Aromatic Sulfonic Acid App 20090099360 - Greiving; Helmut | 2009-04-16 |
Method for Cleaning 3-Hydroxyamidinophenylalanine Derivatives by the Precepitation and Recrystallization of Salt and an Aromatic Sulfonic Acid App 20080039626 - Greiving; Helmut | 2008-02-14 |
Aqueous coating compositions based on epoxybutene polyethers Grant 6,787,627 - Melchiors , et al. September 7, 2 | 2004-09-07 |
Process for preparing a polymer from 3,4-epoxy-1-butene Grant 6,696,531 - Greiving , et al. February 24, 2 | 2004-02-24 |
Aqueous coating compositions based on epoxybutene polyethers App 20030232955 - Melchiors, Martin ;   et al. | 2003-12-18 |
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