Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9519933 | Delivery payment systems | Rodney Darensbourg, Derrick Johnson | 2016-12-13 |
| 5709539 | Pressing plate for linearized pulses from a peristaltic pump | Michael Ron Hammer, Christopher J. Park, Brian Lawrence Allen | 1998-01-20 |
| 5646727 | Peristaltic pump | Michael Ron Hammer, Christopher J. Park, Brian Lawrence Allen | 1997-07-08 |