Wittenbecher; Lars
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wittenbecher; Lars.The latest application filed is for "blends comprising epoxy resins and mixtures of amines with guanidine derivatives".
- Wittenbecher; Lars - Duesseldorf DE
- Wittenbecher; Lars - Mannheim DE
| Patent | Date |
|---|---|
| Mixtures of amines with guanidine derivatives Grant 9,328,058 - Wittenbecher , et al. May 3, 2 | 2016-05-03 |
| Blends comprising epoxy resins and mixtures of amines with guanidine derivatives Grant 9,012,020 - Wittenbecher , et al. April 21, 2 | 2015-04-21 |
| Process for preparing moldings using mixtures of amines with guanidine derivatives Grant 8,852,489 - Wittenbecher , et al. October 7, 2 | 2014-10-07 |
| Blends comprising epoxy resins and mixtures of amines with guanidine derivatives Grant 8,741,426 - Wittenbecher , et al. June 3, 2 | 2014-06-03 |
| Blends Comprising Epoxy Resins And Mixtures Of Amines With Guanidine Derivatives App 20140107255 - WITTENBECHER; Lars ; et al. | 2014-04-17 |
| Epoxy resin compositions and process for preparing them Grant 8,399,596 - Henningsen , et al. March 19, 2 | 2013-03-19 |
| Catalyst for curing epoxides Grant 8,247,517 - Wittenbecher , et al. August 21, 2 | 2012-08-21 |
| Catalyst for curing epoxides Grant 8,202,580 - Wittenbecher , et al. June 19, 2 | 2012-06-19 |
| Catalyst for curing epoxides Grant 8,193,297 - Wittenbecher , et al. June 5, 2 | 2012-06-05 |
| Catalyst for curing epoxides Grant 8,053,546 - Degen , et al. November 8, 2 | 2011-11-08 |
| Process for preparing crystalline hydroxylamine-O-sulfonic acid Grant 8,038,975 - Wittenbecher , et al. October 18, 2 | 2011-10-18 |
| Blends Comprising Epoxy Resins And Mixtures Of Amines With Guanidine Derivatives App 20110190419 - Wittenbecher; Lars ; et al. | 2011-08-04 |
| Process For Preparing Moldings Using Mixtures Of Amines With Guanidine Derivatives App 20110180970 - Wittenbecher; Lars ; et al. | 2011-07-28 |
| Mixtures Of Amines With Guanidine Derivatives App 20110130524 - Wittenbecher; Lars ; et al. | 2011-06-02 |
| Copper(I) formate complexes Grant 7,777,059 - Wittenbecher , et al. August 17, 2 | 2010-08-17 |
| Catalyst For Curing Epoxides App 20100187715 - Degen; Georg ; et al. | 2010-07-29 |
| Catalyst For Curing Epoxides App 20100184925 - Wittenbecher; Lars ; et al. | 2010-07-22 |
| Catalyst For Curing Epoxides App 20100179299 - Wittenbecher; Lars ; et al. | 2010-07-15 |
| Catalyst For Curing Epoxides App 20100166971 - Wittenbecher; Lars ; et al. | 2010-07-01 |
| Process For Preparing Crystalline Hydroxylamine-o-sulfonic Acid App 20100111807 - Wittenbecher; Lars ; et al. | 2010-05-06 |
| Epoxy Resin Compositions And Process For Preparing Them App 20100105856 - Henningsen; Michael ; et al. | 2010-04-29 |
| Process for preparing symmetrical and unsymmetrical N,N-dihydrocarbylhydroxylamines Grant 7,396,959 - Scherhag , et al. July 8, 2 | 2008-07-08 |
| Method For High-Purity Quaternary Ammonium Compounds App 20080033209 - Szarvas; Laszlo ; et al. | 2008-02-07 |
| Copper(I) formate complexes App 20070197810 - Wittenbecher; Lars ; et al. | 2007-08-23 |
| Process for preparing symmetrical and unsymmetrical N,N-dihydrocarbylhydroxylamines App 20070129574 - Scherhag; Gunter ; et al. | 2007-06-07 |
| Deposition of copper layers on substrates App 20040249063 - Sterzel, Hans-Josef ; et al. | 2004-12-09 |
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