Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6492887 | Miniaturized flat spool relay | Werner Johler, Werner Kälin, Urs Korrodi | 2002-12-10 |
| 5371290 | Preparation of N,N-dialkarylamines | Peter Reuter, Willi Weber | 1994-12-06 |
| 4914410 | Relay for printed circuit board | Afro Cecchini | 1990-04-03 |
| 4814422 | Pulverulent aminoplast adhesive resin for wood-base materials having a low formaldehyde emission, its preparation, and a formulated pulverulent aminoplast adhesive resin | Friedrich Kraus, Guenther Matthias, Bruno Maurer, Otto Wittmann | 1989-03-21 |
| 4700000 | Preparation of calcium propionate | Dieter Merkel, Wolfgang Muehlthaler, Guenther Matthias | 1987-10-13 |
| 4684690 | Aminoplast adhesive resin powder for wood-based materials or as a paper adhesive, which eliminates little formaldehyde, its preparation, and a formulated aminoplast adhesive resin powder | Friedrich Kraus, Guenther Matthias, Otto Wittmann | 1987-08-04 |
| 4543488 | Transportation and storage for nuclear fuel wastes | — | 1985-09-24 |
| 4483634 | Keyboard arrangement | Werner Frey, Johannes Rometsch | 1984-11-20 |
| 4458049 | Preparation of cocondensates which produce weather-resistant bonding | Robert Fritsch, Heinz Lehnert, Guenther Matthias, Hermann Schatz, Otto Wittmann | 1984-07-03 |
| 4398180 | Contactless keyboard | Johannes Rometsch, Werner Frey | 1983-08-09 |
| 4326130 | Shielding container with neutron shielding for the transportation and/or storage of spent fuel elements | Stefan Ahner, Peter Srostlik, Helmut Schleich | 1982-04-20 |
| 4242282 | Preparation of glyoxal | Christian Dudeck, Gunter Lehmann, Guenther Matthias, Norbert Petri | 1980-12-30 |
| 4235823 | Preparation of diketones | Christian Dudeck, Gunter Lehmann, Karl-Heinz Ross, Werner Fliege, Norbert Petri +2 more | 1980-11-25 |
| 4233246 | Manufacture of aliphatic hydroxycarbonyl compounds etherified with aliphatic groups | Christian Dudeck, Gunter Lehmann, Norbert Petri, Werner Fliege, Bernd Meissner +2 more | 1980-11-11 |
| 4229590 | Preparation of alkyl pyruvates | Christian Dudeck, Gunter Lehmann, Bernd Meissner, Werner Fliege, Norbert Petri +1 more | 1980-10-21 |
| 4209466 | Manufacture of formaldehyde | Dieter Wolf, Otto Grabowsky, Guenther Matthias | 1980-06-24 |