| 5856724 |
High efficiency, extended life spark plug having shaped firing tips |
Randolph Kwok-Kin Chiu, Donald Robert Van Uum, William T. Phillips |
1999-01-05 |
| 5821676 |
Spark plug with grooved, tapered center electrode |
Ray W. Atchinson, Dale Lavern Freed, Jr., John Franklin Mc Keon, Jr., Donald Robert Van Uum, Charles D. Oakley +1 more |
1998-10-13 |
| 5527198 |
High efficiency, extended life spark plug having shaped firing tips |
Randolph Kwok-Kin Chiu, Donald Robert Van Uum, William T. Phillips |
1996-06-18 |
| 5409388 |
Ignition cable assembly |
William T. Phillips, Michael J. Bezusko, Vincent J. Tura, Jr. |
1995-04-25 |
| 5014656 |
Internal combustion engine having a permanent ground electrode and replaceable center electrode element |
Joseph Michael Leptich, Steve LOWE |
1991-05-14 |
| 4989557 |
Spark plug assembly for internal combustion engine |
— |
1991-02-05 |
| 4253931 |
Electrode sputtering process for exhaust gas oxygen sensor |
Terry J. Gold, Kurt D. Humphrey, Robert J. Smith, Randy L. Voto, Ralph V. Wilhelm, Jr. |
1981-03-03 |
