Issued Patents All Time
Showing 1–25 of 170 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12066304 | Switching assembly and method for measuring a position of a contact bridge in a switching assembly | Bernd Rahn, Peter Sandeck, Matthias Kroeker, Harry Koch | 2024-08-20 |
| 11239009 | Power resistor | Josef Praschk | 2022-02-01 |
| 11170956 | Switching arrangement | Harry Koch, Matthias Kroeker | 2021-11-09 |
| 10115512 | Switching arrangement | Harry Koch, Matthias Kroeker | 2018-10-30 |
| 8013268 | Circuit breaker with a double acting circuit-breaking chamber and an inverted structure | Joel Ozil, Christophe Creusot, Jean-Luc Bourgeois | 2011-09-06 |
| 7989726 | Electrical device containing insulating gas under pressure and including a composite insulator provided with a window for observing contacts | Jean-Luc Bessede, Yannick Kieffel | 2011-08-02 |
| 7790997 | Switch unit having a circuit breaker and a disconnector with common drive means | Alain Girodet, Igor Deprez, Olivier Le Grand | 2010-09-07 |
| 6437273 | Hybrid circuit breaker | Joachim Stechbarth, Kurt Kaltenegger, Werner Hofbauer, Lutz Niemeyer, Max Claessens +1 more | 2002-08-20 |
| 5898149 | Power circuit-breaker | Ernst Berger | 1999-04-27 |
| 5456861 | Abietic acid derivatives and their use as emulsifiers | Karl-Erwin Piejko, Dieter Constant, Claus Wulff | 1995-10-10 |
| 5434203 | Mixtures of bisphenols and graft polymers | Holger Lutjens, Karl-Erwin Piejko | 1995-07-18 |
| 5382625 | Thermoplastic moulding compositions with high notched impact strength | Walter Uerdingen, Karl-Heinz Ott, Hans-Eberhard Braese | 1995-01-17 |
| 5344876 | Molding compounds having improved fire behavior | Karl-Erwin Piejko, Hans-Eberhard Braese | 1994-09-06 |
| 5340876 | Thermoplastic moulding compounds of polyamides and resin copolymers | Uwe Westeppe, Klaus Struss, Karsten-Josef Idel, Hans-Joachim Laue | 1994-08-23 |
| 5314963 | Graft polymers containing phosphorus | Dieter Wittmann | 1994-05-24 |
| 5298546 | Thermoplastic molding compounds of polyalkylene terephthalate, special barium sulfate, particulate graft polymers and, optionally, reinforcing materials | Jurgen Kirsch, Karl-Erwin Piejko, Karsten-Josef Idel, Hans-Georg Gehrke | 1994-03-29 |
| 5296528 | Compatible polymer blends with thermoplastic polycarbonates | Holger Lutjens, Karl-Erwin Piejko, Rudiger Plaetschke, Jurgen Kirsch | 1994-03-22 |
| 5274032 | Polymer alloys | Herbert Eichenauer, Alfred Pischtschan | 1993-12-28 |
| 5274031 | Polymer alloys of high ageing resistance | Herbert Eichenauer, Alfred Pischtschan | 1993-12-28 |
| 5272205 | Polymer mixtures of high ageing resistance | Herbert Eichenauer, Alfred Pischtschan | 1993-12-21 |
| 5266642 | Process for the preparation of alpha-methylstyrene polymers | Karl-Erwin Piejko, Ralph Ostarek | 1993-11-30 |
| 5252672 | Polymer blends of polyamides and polymers containing sulfonamide structural units | Georg Heger, Holger Lutjens, Gerd Fengler | 1993-10-12 |
| 5252674 | Thermoplastic graft polymers containing oxetanyl groups | Karl-Erwin Piejko, Gerd Fengler, Hans-Eberhard Braese, Jurgen Kirsch | 1993-10-12 |
| 5250621 | Interpolymers of aromatic polyesters and rubbers | Holger Lutjens, Uwe Westeppe, Leo Morbitzer, Karl-Erwin Piejko | 1993-10-05 |
| 5250622 | Polymer combinations with a high rubber content | Holger Lutjens, Karl-Erwin Piejko, Dieter Constant | 1993-10-05 |