Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6237722 | "Railroad handbrake ""off"" sensor" | Kevin J. Engler, Brad L. Cummins | 2001-05-29 |
| 6170619 | Manual hand brake sensor for a railroad car | Alan V. Sheriff, Duane J. Sies, Gary O'Brien, Brad L. Cummins | 2001-01-09 |
| 5729025 | Electromechanically actuated turbidity sensor for a machine for washing articles | Timothy K. Erickson, Gary O'Brien, Ian F. Reeve | 1998-03-17 |