Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8720592 | Expansion nozzle assembly to produce inert gas bubbles | Stephen A. Barker, Donald M. Bjorkman, Gregory R. Walker | 2014-05-13 |
| 8322633 | Expansion nozzle assembly to produce inert gas bubbles | Stephen A. Barker, Donald M. Bjorkman, Gregory R. Walker | 2012-12-04 |
| 7381696 | Aqueous foamable concentrates and methods | Gregory R. Walker | 2008-06-03 |
| 6599872 | Aqueous foamable concentrates and methods | Gregory R. Walker | 2003-07-29 |