Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10312668 | Spark plug having firing pad | Kevin J. Kowalski, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller | 2019-06-04 |
| 9673593 | Spark plug having firing pad | Kevin J. Kowalski, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller | 2017-06-06 |
| 9573218 | Welding system for attaching firing tips to spark plug electrodes | — | 2017-02-21 |
| 9368943 | Spark plug having multi-layer sparking component attached to ground electrode | Kevin J. Kowalski, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller | 2016-06-14 |
| 9318879 | Spark plug having firing pad | Kevin J. Kowalski, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller | 2016-04-19 |
| 9130356 | Spark plug having a thin noble metal firing pad | Kevin J. Kowalski, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller | 2015-09-08 |
| 9130357 | Method of capacitive discharge welding firing tip to spark plug electrode | — | 2015-09-08 |
| 9048635 | Spark plug with laser keyhole weld attaching ground electrode to shell | — | 2015-06-02 |
| 9041274 | Spark plug having firing pad | Kevin J. Kowalski, Nathan A. Thomson, Curtis W. Verhoff, Richard L. Keller | 2015-05-26 |
| 8937427 | Spark plug and method of manufacturing the same | — | 2015-01-20 |
| 8896194 | Spark ignition device and ground electrode therefor and methods of construction thereof | — | 2014-11-25 |
| 8853924 | Spark ignition device for an internal combustion engine, metal shell therefor and methods of construction thereof | — | 2014-10-07 |
| 8643262 | Spark ignition device and ground electrode therefor and methods of construction thereof | Kevin J. Kowalski, Mark S. McMurray | 2014-02-04 |
| 8641467 | Spark ignition device and ground electrode therefor and methods of construction thereof | Kevin J. Kowalski, Mark S. McMurray | 2014-02-04 |
| 8519607 | Spark plug electrode configuration | Kevin J. Kowalski, Richard L. Keller, Richard Llope | 2013-08-27 |
| 8288930 | Spark ignition device and ground electrode therefor and methods of construction thereof | Kevin J. Kowalski, Mark S. McMurray | 2012-10-16 |