Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12381375 | Spark plug electrode having ruthenium-based material | Nicholas Ritsema | 2025-08-05 |
| 12027826 | Spark plug | — | 2024-07-02 |
| 11777282 | Electrode material for a spark plug | — | 2023-10-03 |
| 11489316 | Spark plug shell and method of manufacture | Richard L. Keller | 2022-11-01 |
| 10943174 | Anomaly identification method for structural monitoring data considering spatial-temporal correlation | Tinghua YI, Haibin Huang, Hongnan LI | 2021-03-09 |
| 10418789 | Spark plug with a suppressor that is formed at low temperature | Keith Firstenberg, William J. Walker, Jr., Michael Saccoccia | 2019-09-17 |
| 10044172 | Electrode for spark plug comprising ruthenium-based material | — | 2018-08-07 |
| 9337624 | Electrode material for a spark plug and method of making the same | — | 2016-05-10 |
| 9231380 | Electrode material for a spark plug | — | 2016-01-05 |
| 9130358 | Method of manufacturing spark plug electrode material | — | 2015-09-08 |
| 9083156 | Electrode core material for spark plugs | Richard L. Keller, John Antony Burrows | 2015-07-14 |
| 9004969 | Spark plug electrode and spark plug manufacturing method | — | 2015-04-14 |
| 8979606 | Method of manufacturing a ruthenium-based spark plug electrode material into a desired form and a ruthenium-based material for use in a spark plug | — | 2015-03-17 |
| 8890399 | Method of making ruthenium-based material for spark plug electrode | — | 2014-11-18 |
| 8816577 | Spark plug including electrodes with low swelling rate and high corrosion resistance | James D. Lykowski | 2014-08-26 |
| 8766519 | Electrode material for a spark plug | — | 2014-07-01 |
| 8760044 | Electrode material for a spark plug | — | 2014-06-24 |
| 8680758 | Spark plug having a plastic upper insulator and method of construction | Kevin L. Miller, Richard L. Keller, William J. Walker, Jr., James D. Lykowski, Matthew C. Ware +7 more | 2014-03-25 |
| 8575830 | Electrode material for a spark plug | — | 2013-11-05 |
| 8575829 | Spark plug including high temperature performance electrode | James D. Lykowski | 2013-11-05 |
| 8492963 | Spark plug with volume-stable electrode material | — | 2013-07-23 |
| 8482188 | Spark plug electrode with nanocarbon enhanced copper core | — | 2013-07-09 |
| 8471451 | Ruthenium-based electrode material for a spark plug | — | 2013-06-25 |
| 8436520 | Electrode material for use with a spark plug | — | 2013-05-07 |
| 8288927 | Spark plug including electrodes with low swelling rate and high corrosion resistance | James D. Lykowski | 2012-10-16 |