Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5322626 | Decoupled flow and pressure setpoints in an extraction instrument using compressible fluids | Lenore R. Frank, Paul C. Dryden, Steven J. Engel, Mark Nickerson, Ernest H. Zerenner | 1994-06-21 |
| 5255205 | Method and apparatus for regulating fluid flow | Lenore R. Frank, Lee H. Altmayer | 1993-10-19 |
| 5240603 | Decoupled flow and pressure setpoints in an extraction instrument using compressible fluids | Lenore R. Frank, Paul C. Dryden, Steven J. Engel, Mark Nickerson, Ernest H. Zerenner | 1993-08-31 |
| 5155693 | Self documenting record of instrument activity and error messages stamped with date and time of occurrence | Lee H. Altmayer | 1992-10-13 |
| 5133859 | Decoupled flow and pressure setpoints in an extraction instrument using compressible fluids | Lenore R. Frank, Paul C. Dryden, Steven J. Engel | 1992-07-28 |