Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7357785 | System for detecting air | Douglas Duchon, Thomas Paulson, Robert F. Wilson, Jiyan Liu | 2008-04-15 |
| 7153288 | System for detecting air | Doug Duchon, Thomas Paulson, Robert F. Wilson, Jiyan Liu | 2006-12-26 |
| 6945959 | System for detecting air | Doug Duchon, Thomas Paulson, Robert F. Wilson, Jiyan Liu | 2005-09-20 |
| 6746427 | System for detecting air | Doug Duchon, Thomas Paulson, Robert F. Wilson, Jiyan Liu | 2004-06-08 |
| 6447481 | System for detecting air | Doug Duchon, Thomas Paulson, Robert F. Wilson, Jiyan Liu | 2002-09-10 |
| 6344030 | Random speed change injector | Doug Duchon, Thomas Paulson, Robert F. Wilson, Jiyan Liu | 2002-02-05 |
| 6099502 | Dual port syringe | Doug Duchon, Thomas Paulson, Robert F. Wilson, Jiyan Liu | 2000-08-08 |
| 5988587 | Control device for providing a variable control signal to a fluid-supplying machine | Doug Duchon | 1999-11-23 |
| D402028 | Hand controller for medical system | Tom Grimm, Doug Duchon | 1998-12-01 |