Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5493851 | Lawnmower | Johann Katzer, Wolfgang Lindermeir, Franz Lopic, Werner Kress | 1996-02-27 |
| 5226599 | Flush sprinkler | Wolfgang Lindermeir, Ram K. Agrawal, Johann Schaffer, Frantz Lopic | 1993-07-13 |
| 5224795 | Irrigation regulator | Franz Lopic, Johann Katzer | 1993-07-06 |
| 5052622 | Sprinkler | Wolfgang Lindermeir, Franz Lopic, Johann Katzer, Johann Schaeffer, Roland Sauer | 1991-10-01 |
| 4905903 | Sprinkler | Johann Katzer, Willi Hepperle | 1990-03-06 |
| 4673307 | Washing brush with adjustable head | Erich Prestele, Alfred Schneider, Willi Hepperle, Johann Katzer, Franz Lopic | 1987-06-16 |
| 4671311 | Admixer for delivering soluble additives | Willi Hepperle, Johann Katzer, Hans Froelich | 1987-06-09 |
| 4639018 | Joint for a water-carrying pipe system | Hans Froelich, Willi Hepperle, Johann Katzer | 1987-01-27 |
| 4572235 | Mixing apparatus | Johann Katzer, Franz Lopic, Roland Sauer | 1986-02-25 |