Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6050457 | High pressure manually-actuated spray pump | Mark Thomas Lund, Donald E. Hershey | 2000-04-18 |
| 5947340 | Manually-actuated high pressure spray pump | Mark Thomas Lund, Donald E. Hershey | 1999-09-07 |