Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10908005 | Capillary sensor tube flow meters and controllers | Brian J. Estep | 2021-02-02 |
| 9239257 | Mass flow meter configured with computational modeling for use with different fluids | — | 2016-01-19 |
| 7748267 | Mass flow meter with solder/braze-flow secured spacer | John P. Smitherman | 2010-07-06 |
| 7197953 | Immersible thermal mass flow meter | — | 2007-04-03 |
| 7178409 | Laminar flow meter or controller | John P. Smitherman | 2007-02-20 |
| 6971274 | Immersible thermal mass flow meter | — | 2005-12-06 |
| 5879082 | Dual element temperature sensing probe using a mathematical model of heat transfer along the probe and method therefor | John P. Smitherman | 1999-03-09 |
| 5880365 | Thermal mass flow sensor | David M. Korpi, Donald I. Ross | 1999-03-09 |
| 4487062 | Mass flowmeter | David M. Korpi | 1984-12-11 |
| 4461173 | Multirange flowmeter | — | 1984-07-24 |
| 4246788 | Method and apparatus for sampling of a particle-bearing gas | Norman C. Ahlquist | 1981-01-27 |