Issued Patents All Time
Showing 25 most recent of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6624301 | Process for the preparation of (cyclo)aliphatic uretdiones of improved color quality | Felix Schmitt | 2003-09-23 |
| D442972 | Lawnmower | — | 2001-05-29 |
| 6204351 | Blocked polyisocyanates with built-in hals stabilizer | Rainer Gras | 2001-03-20 |
| 5959023 | Moisture-crosslinking PU hot-melt adhesives | — | 1999-09-28 |
| 5955558 | Blocked polyisocyanates with built-in HALS stabilizer | Rainer Gras | 1999-09-21 |
| 5929241 | Process for the preparation of an isocyanate-free uretdione of isophorone diisocyanate | — | 1999-07-27 |
| 5919568 | Powder coating and its use for coating heat-resistant substrates | — | 1999-07-06 |
| 5912314 | Reaction product of mixed uretdiones and a disecondary diamine | — | 1999-06-15 |
| 5883249 | Simplified process for preparing uretdione-functional polyaddition compounds | — | 1999-03-16 |
| 5859164 | Uretdione-functional polyaddition compounds, a process for their preparation, and their use | Rainer Gras, Joern Weiss, Felix Schmitt | 1999-01-12 |
| 5852154 | Cold-curing, low-solvent or solvent-free 2-component polyurethane/polyurea compositions | Rainer Gras, Felix Schmitt | 1998-12-22 |
| 5773550 | Polyaddition product containing isocyanurate groups and uretdione groups, and a process for preparing same | — | 1998-06-30 |
| 5756634 | Liquid one component PU stoving enamels | Richard Braunstein, Felix Schmitt | 1998-05-26 |
| 5756819 | Polyamines containing tert-butyl (meth) acrylate groups | Bernhard Schleimer | 1998-05-26 |
| 5719240 | Compounds containing cyclic amidine and uretdione groups, a process for their preparation and the use thereof | Rainer Gras | 1998-02-17 |
| 5652318 | Process for the preparation of flexible epoxy resin systems | Richard Braunstein, Bernhard Schleimer, Felix Schmitt, Joern Weiss | 1997-07-29 |
| 5633336 | Polyamines containing urea groups and process for their preparation | Rainer Gras | 1997-05-27 |
| 5621063 | Blocked polyisocyanates and a process for their preparation | Christoph Theis | 1997-04-15 |
| 5616658 | Process for the production of matt epoxy resin and hybrid powder coatings | Rainer Gras | 1997-04-01 |
| 5608016 | Salts of pyromellitic acid, and their use as epoxy resin curing agents | Rainer Gras | 1997-03-04 |
| 5556937 | Salts of pyromellitic acid, a process for their preparation, and their use | Rainer Gras | 1996-09-17 |
| 5550206 | Polyamines containing urea groups | Rainer Gras | 1996-08-27 |
| 5506334 | Salts of pyromellitic acid, a process for their preparation and their use | Rainer Gras | 1996-04-09 |
| 5494994 | Salts of pyromellitic acid, a process for their preparation and their use | Rainer Gras | 1996-02-27 |
| 5459204 | Isophorone urethane polyamine, a process for its preparation and its use | Rainer Lomoelder, Wilfried Paulen, Felix Schmitt | 1995-10-17 |