Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6512204 | Ion sensor glow plug assembly | Keith Michael Brenske, Haskell Simpkins | 2003-01-28 |
| 6465759 | Ion sensor glow plug assembly | Haskell Simpkins, Keith Michael Brenske | 2002-10-15 |
| 6285007 | Ion sensor glow plug assembly | Haskell Simpkins, Keith Michael Brenske | 2001-09-04 |
| 6248980 | Ion sensor glow plug assembly | Keith Michael Brenske, Haskell Simpkins | 2001-06-19 |
| 6215105 | Ion sensor glow plug assembly with coating between sheath and shell | Haskell Simpkins, Keith Michael Brenske | 2001-04-10 |
| 6177653 | Ion sensor bulb-shaped glow plug assembly | Charles D. Oakley, Gamdur S. Mann | 2001-01-23 |
| 6148660 | Glow sensor-ceramic tip | Charles D. Oakley, Russell Bosch, Magnus Glavmo, Hiroshi Takayama, Keisuke Okajima | 2000-11-21 |
| 6144015 | Glow sensor--ceramic flat plate | David K. Chen | 2000-11-07 |
| 6062185 | Glow sensor and engine component combination | Charles D. Oakley, Joseph Michael Leptich, Gamdur S. Mann, David K. Chen | 2000-05-16 |
| 5856724 | High efficiency, extended life spark plug having shaped firing tips | Keith A. Penney, Donald Robert Van Uum, William T. Phillips | 1999-01-05 |
| 5558575 | Spark plug with platinum tip partially embedded in an electrode | Mark James Harris | 1996-09-24 |
| 5530313 | Spark plug with copper cored ground electrode and a process of welding the electrode to a spark plug shell | — | 1996-06-25 |
| 5527198 | High efficiency, extended life spark plug having shaped firing tips | Keith A. Penney, Donald Robert Van Uum, William T. Phillips | 1996-06-18 |
| 5250778 | Method and apparatus for welding pad material to a spark plug electrode | John F. McKeon, Paul A. Wheeler | 1993-10-05 |
| 4284972 | Vehicle mileage interval detector | Douglas A. Stiff, Francis G. Cox | 1981-08-18 |