Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE40441 | Pivoting fluid conduit joint and one-way brake | David J. Kolacz, Ross Mack, Robert W. Steingass | 2008-07-22 |
| 6305621 | Pivoting fluid conduit joint and one-way brake | David J. Kolacz, Ross Mack, Robert W. Steingass | 2001-10-23 |
| 6089098 | Differential pressure switch having an isolated hall effect sensor | Ronald R. Krueger | 2000-07-18 |
| D387404 | Golf putter head | — | 1997-12-09 |