Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7581433 | Cylinder leak detector | — | 2009-09-01 |
| 6668784 | Threaded insert for tapered seat spark plug bores, installation tools, and method of installation | Michael L. Shiffermiller | 2003-12-30 |
| 4759826 | Process for purifying thionyl chloride | — | 1988-07-26 |