Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11489316 | Spark plug shell and method of manufacture | Shuwei Ma | 2022-11-01 |
| 10312668 | Spark plug having firing pad | Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff | 2019-06-04 |
| 9673593 | Spark plug having firing pad | Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff | 2017-06-06 |
| 9368943 | Spark plug having multi-layer sparking component attached to ground electrode | Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff | 2016-06-14 |
| 9318879 | Spark plug having firing pad | Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff | 2016-04-19 |
| 9231379 | Spark plug having firing pad | Kevin J. Kowalski, Nathan A. Thomson | 2016-01-05 |
| 9130356 | Spark plug having a thin noble metal firing pad | Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff | 2015-09-08 |
| 9083156 | Electrode core material for spark plugs | Shuwei Ma, John Antony Burrows | 2015-07-14 |
| 9041274 | Spark plug having firing pad | Kevin J. Kowalski, Frederick J. Quitmeyer, Nathan A. Thomson, Curtis W. Verhoff | 2015-05-26 |
| 8680758 | Spark plug having a plastic upper insulator and method of construction | Kevin L. Miller, William J. Walker, Jr., James D. Lykowski, Shuwei Ma, Matthew C. Ware +7 more | 2014-03-25 |
| 8569940 | Spark plug having ground electrode tip attached to free end surface of ground electrode | Kevin J. Kowalski | 2013-10-29 |
| 8519607 | Spark plug electrode configuration | Kevin J. Kowalski, Frederick J. Quitmeyer, Richard Llope | 2013-08-27 |
| 5620119 | Umbrella holder | — | 1997-04-15 |
| 5189944 | Automated french fry cooking apparatus | Glenn Rasmussen, James W. Finkowski, Robert F. Meyer, Thomas P. Kempf, Ronald N. Phillips | 1993-03-02 |
| 4412392 | Grain drying and storage structure | — | 1983-11-01 |
| 4187771 | Frying apparatus | Jack D. Westover | 1980-02-12 |