Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5789526 | Highly viscous condensation products containing sulfonic acid groups based on amino-s-triazines | Josef Weichmann, Franz Wolfertstetter, Herbert Winkelmann | 1998-08-04 |
| 5750634 | Water-soluble polycondensation products based on amino-s-triazines and the use thereof | Gerhard Albrecht, Josef Weichmann, Ludwig Eibl, Christian Huber | 1998-05-12 |
| 5739212 | Water-soluble graft polymers | Konrad Wutz, Josef Weichmann, Hans-Gunter Rosenbauer | 1998-04-14 |
| 5595239 | Heating, venting, and/or air conditioning unit | Hannes Wolf | 1997-01-21 |
| 5558709 | Flow improving agents for binder suspensions containing cement | Josef Weichmann, Aloisia Stadler | 1996-09-24 |
| 5071945 | Process for the production of sulphonic acid group-containing condensation products with a low content of free formaldehyde | Josef Weichmann, Manfred Bichler, Hans-Gunter Rosenbauer | 1991-12-10 |
| 4864919 | Vent for aerating windows | Joachim Schulz | 1989-09-12 |
| 4610196 | Air supply nozzle | — | 1986-09-09 |
| D267341 | Blood pressure measuring instrument or similar article | Rido Busse, Reinhold Rapp | 1982-12-21 |