Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10782192 | Calibration bath with stir motor closed-loop control and stirring viscosity detection and adjustment | Michael W. Hirst, Eric Nerdrum | 2020-09-22 |
| 10578479 | Calibration bath with acoustic liquid level sensor | — | 2020-03-03 |
| 9681496 | High temperature furnace having reconfigurable heater circuits | Tian Xia, Jiajun Yan | 2017-06-13 |
| 8358143 | Internal self-check resistance bridge and method | — | 2013-01-22 |
| 8253427 | Resistance bridge architecture and method | — | 2012-08-28 |
| 8117848 | Temperature calibration device having reconfigurable heating/cooling modules to provide wide temperature range | Frank E. Liebmann, David W. Farley, Michael W. Hirst, Allen Erik Sjogren | 2012-02-21 |
| 8120327 | System and method for using stored electrical energy to quiet power sensitive measurement circuits | Allen Erik Sjogren | 2012-02-21 |
| D639249 | Instrument having oblique mounted terminal posts | David W. Farley, Jeff M. Elrod | 2011-06-07 |
| 7922522 | Instrument having oblique mounted terminal posts | David W. Farley, Jeff M. Elrod | 2011-04-12 |
| D613251 | Instrument having oblique mounted terminal posts | David W. Farley, Jeff M. Elrod | 2010-04-06 |
| 7669427 | Temperature calibration device driving heating/cooling modules in a manner to allow operation over wide temperature range | Frank E. Liebmann | 2010-03-02 |
| 7607309 | Temperature calibration device having reconfigurable heating/cooling modules to provide wide temperature range | Frank E. Liebmann, David W. Farley, Michael W. Hirst, Allen Erik Sjogren | 2009-10-27 |
| D260732 | Bottle | — | 1981-09-15 |