Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9671265 | Thermal dispersion mass flow rate, material interface, and liquid level sensing transducer | — | 2017-06-06 |
| 9228881 | Method and apparatus for in-situ calibration and function verification of fluid level sensor | Eric Wible | 2016-01-05 |
| 9010994 | Flow mixer and conditioner | Donald G. LUNDBERG | 2015-04-21 |
| 6843110 | Method and apparatus for validating the accuracy of a flowmeter | Jeffrey P. Deane | 2005-01-18 |
| 6628202 | Thermal dispersion mass flow rate and liquid level switch/transmitter | Samuel Kresch, Agustin J. Rodriguez | 2003-09-30 |
| 6208254 | Thermal dispersion mass flow rate and liquid level switch/transmitter | Sam Kresch | 2001-03-27 |
| 5600528 | Heater cut off circuit and method | — | 1997-02-04 |
| 5438866 | Method of making average mass flow velocity measurements employing a heated extended resistance temperature sensor | — | 1995-08-08 |
| 5355727 | Method of making average mass flow velocity measurements | — | 1994-10-18 |
| 5221916 | Heated extended resistance temperature sensor | — | 1993-06-22 |
| 5201223 | Method of sensing fluid flow and level employing a heated extended resistance temperature sensor | — | 1993-04-13 |
| 5167153 | Method of measuring physical phenomena using a distributed RTD | — | 1992-12-01 |
| 5152049 | Method of making a heated extended resistance temperature sensor | — | 1992-10-06 |
| 5134772 | Method of making a U-shaped heated extended resistance temperature sensor | — | 1992-08-04 |
| 5117216 | Distributed RTD | — | 1992-05-26 |
| 5111692 | Temperature compensated liquid level and fluid flow sensor | David J. Allen | 1992-05-12 |
| 4994780 | Heated extended resistance temperature sensor, apparatus for sensing and method of making same | — | 1991-02-19 |
| 4977385 | Distributed RTD | — | 1990-12-11 |
| 4967593 | Method and apparatus for distinguishing between different substances in a container | — | 1990-11-06 |
| 4899584 | Fluidic amplifier for sensing fluid motion | — | 1990-02-13 |
| 4449403 | Guide tube inserted liquid level sensor | — | 1984-05-22 |