Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11258235 | High thread jamb nut with retaining clip | Timothy J. Smith | 2022-02-22 |
| 11081864 | High thread spark plug with non-axisymmetric ground shield for precise ground strap orientation | Timothy J. Smith | 2021-08-03 |
| 10186846 | System and method for testing breakdown voltage/dielectric strength of spark plug insulators | Jing Zheng, Corey Eiden | 2019-01-22 |
| 9735553 | System and method for testing breakdown voltage/dielectric strength of spark plug insulators | Jing Zheng, Corey Eiden | 2017-08-15 |
| 8994256 | Igniter for an internal combustion engine | Jeff Boehler, Corey Eiden | 2015-03-31 |
| 8791626 | Spark plug with ring member coupled to center electrode thereof | Jeffrey T. Boehler, Jerry Williams Reeves, Jr., Philip P. Treier | 2014-07-29 |
| 8766520 | Spark plug with ground electrode plateau and method of making the same | Jeffrey T. Boehler, Jerry Williams Reeves, Jr., Ovidio Bocanegra, Jayme R. Eastman, Timothy M. Frech | 2014-07-01 |
| 8715025 | Laser welded spark plug electrode and method of forming the same | Jeffrey T. Boehler, Jayme R. Eastman | 2014-05-06 |
| 8659216 | Spark plug assembly for enhanced ignitability | Steven M. Brickner, Jerry W. Reeves | 2014-02-25 |
| 8643261 | Spark plug with undercut insulator and one piece shell | — | 2014-02-04 |
| 8568181 | Spark plug with undercut insulator | — | 2013-10-29 |
| 8552628 | High thread spark plug with undercut insulator | — | 2013-10-08 |
| 8460044 | Spark plug electrode and method of making | Jeffrey T. Boehler, Jonathon Barricklow | 2013-06-11 |
| 8350456 | Cold foul resistant spark plug | — | 2013-01-08 |
| 8337268 | Method of making spark plug casing and spark plug having the spark plug casing | J. Braden Richards | 2012-12-25 |
| 8294343 | Method of producing a spark plug via flared tip attachment | Eric Passman, Jeffrey T. Boehler | 2012-10-23 |
| 8216015 | High thread ground shield | — | 2012-07-10 |
| 8151626 | System and method for sensing high temperature particulate matter | Brian C. Krafthefer, Gregory E. Stewart, Jeff Boehler, Michael L. Rhodes | 2012-04-10 |
| 8058786 | Dielectric enhanced partial thread spark plug | — | 2011-11-15 |
| 8058785 | Spark plug structure for improved ignitability | Jeffrey T. Boehler | 2011-11-15 |
| 8053965 | Combination igniter and sensor for an internal combustion engine | Jeffrey T. Boehler, Edward VanDyne | 2011-11-08 |
| 8047054 | Particulate matter sensor | — | 2011-11-01 |
| 8037738 | Particulate matter sensor | Jeffrey T. Boehler, Palani Thanigachalam, Ashutosh Pandey, Jim Cook, Tim Erickson +2 more | 2011-10-18 |
| 8035286 | Spark plug casing and spark plug having the spark plug casing | J. Braden Richards | 2011-10-11 |
| 8030831 | High thread spark plug with undercut insulator | — | 2011-10-04 |