Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9698576 | Method for manufacturing an ignition electrode for spark plugs and spark plug manufactured therewith | Matthias Blankmeister | 2017-07-04 |
| 9667037 | Prechamber spark plug for a gas-powered internal combustion engine | Francisco Villaverde | 2017-05-30 |
| 9653887 | Spark plug for a prechamber internal combustion engine | Alexander Schenk, Arian Mesdaghi | 2017-05-16 |
| 9593662 | Corona ignition device and method for producing an ignition head for a corona ignition device | Timo Stifel, Helmut Muller | 2017-03-14 |
| 9564740 | Spark plug for a gas-powered internal combustion engine | Rene Trebbels | 2017-02-07 |
| 9562510 | Spark plug for a gas-powered internal combustion engine | Anko Ernst | 2017-02-07 |
| 9444228 | Spark plug | Alexander Schenk | 2016-09-13 |
| 9083154 | Spark plug | Alexander Schenk | 2015-07-14 |
| 8890396 | Spark plug for a gas-operated internal combustion engine | Anko Ernst, Udo Sander, Mario Dittmann, Alexander Schenk | 2014-11-18 |
| 8890398 | Spark plug for gasoline engines | Alexander Schenk | 2014-11-18 |
| 8742652 | HF ignition device | — | 2014-06-03 |
| 8680757 | Spark plug and method for the production thereof | Christian Mayer, Alexander Schenk | 2014-03-25 |
| 8476816 | Spark plug and method for manufacturing a spark plug | — | 2013-07-02 |
| 8471449 | Attaching a precious metal component to spark plug electrode and spark plug having the same | Christophe Houlle | 2013-06-25 |
| 7980908 | Spark plug and method for production of a spark plug | Lutz Frassek, Hans Houben | 2011-07-19 |
| 7740513 | Method and device for manufacturing a noble metal armored electrode for a sparking plug | Helmut Mueller | 2010-06-22 |
| 6833658 | Middle electrode with precious metal reinforcement and a process for producing the same | — | 2004-12-21 |
| 6791246 | Spark plug and method for its manufacture | — | 2004-09-14 |
| 6705009 | Process for producing middle electrode | — | 2004-03-16 |
| 6583538 | Spark plug | Manfred Adolf | 2003-06-24 |
| 6064144 | Spark plug for an internal combustion engine and process for its manufacture | Harald Knoll, Erwin Schneck, Dirk Von Hacht, Heinz Ambacher | 2000-05-16 |
| 5510667 | Spark plug with an electrode having a platinum-nickel fiber composite material | Otto Loffler, Heinz Ambacher, Friedrich Schneider | 1996-04-23 |
| 5500304 | Silver-nickel composite material for electrical contacts and electrodes | Otto Loffler, Heinz Ambacher, Friedrich Schneider | 1996-03-19 |
| 4963784 | Spark plug having combined surface and air gaps | — | 1990-10-16 |
| 4795937 | Spark plug with combined surface and air spark paths | Eberhard P. Wagner, Rudolf Maly, Otto Loffler | 1989-01-03 |