Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5329806 | Exhaust sensor with tubular shell | Mark R. McClanahan, Richard W. Duce | 1994-07-19 |
| 4860499 | Apparatus for measuring grinding forces on ceramic parts | Mark R. McClanahan, David B. Quinn, Frederick L. Kennard, III | 1989-08-29 |