Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9404588 | Vacuum control valve for vacuum drainage system | Douglas R. McPherson, James Ronning, Jay Shands | 2016-08-02 |
| 7578906 | Headbox and stock delivery system for a papermaking machine | Jay Shands, James Ronning, Vaughn Wildfong, Douglas R. McPherson | 2009-08-25 |