Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11566616 | Pump shaft packing gland and bushing | John Hall, Michael R. Crawford, Chad Wunderlich | 2023-01-31 |
| 10760685 | Pump shaft packing gland and bushing | John Hall, Michael R. Crawford, Chad Wunderlich | 2020-09-01 |
| 10514034 | Idler gear for positive displacement gear pump | Michael R. Crawford, John Hall | 2019-12-24 |
| 6712585 | Magnetic pump | Michael R. Crawford, Howard Koth | 2004-03-30 |
| 6095781 | Timed element, high pressure, industrial rotary lobe pump | John Petersen, James M. Mayer, Michael R. Crawford | 2000-08-01 |