Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7767778 | Polyurethane powder coating compositions that do not split off blocking agents and have a low stoving temperature | Michael Grahl, Dorota Greszta-Franz, Hans-Josef Laas, Reinhard Halpaap | 2010-08-03 |
| 7329717 | Polyisocyanate-modified polycarboxylic acids | Hans-Josef Laas, Christoph Gürtler, Reinhard Halpaap, Michael Grahl, Peter Thometzek | 2008-02-12 |
| 7148295 | Carboxy-functional crosslinkers for epoxy-functional powder-lacquer binding agents | Hans-Josef Laas, Christoph Gürtler, Reinhard Halpaap, Michael Grahl, Peter Thometzek | 2006-12-12 |
| 4289264 | Uniform load piston ring | — | 1981-09-15 |