Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10352744 | Chordal gas flow meter with transducers installed outside the pressure boundary | Emanuel J. Gottlieb, Donald R. Augenstein, Richard A. Zuckerman, Herbert Estrada, Calvin R. Hastings | 2019-07-16 |
| 10107658 | Ultrasonic flowmeter with internal surface coating and method | Gregor J. Brown, Donald R. Augenstein, Calvin R. Hastings | 2018-10-23 |
| 9322689 | Chordal gas flow meter with transducers installed outside the pressure boundary, and method | Emanuel J. Gottlieb, Donald R. Augenstein, Richard A. Zuckerman, Herbert Estrada, Calvin R. Hastings | 2016-04-26 |
| 9170140 | Ultrasonic flowmeter with internal surface coating and method | Gregor J. Brown, Donald R. Augenstein, Calvin R. Hastings | 2015-10-27 |
| 8544343 | Chordal gas flowmeter with transducers installed outside the pressure boundary | Emanuel J. Gottlieb, Donald R. Augenstein, Richard A. Zuckerman, Herbert Estrada, Calvin R. Hastings | 2013-10-01 |
| 8534138 | Chordal gas flowmeter with transducers installed outside the pressure boundary, housing and method | Emanuel J. Gottlieb, Donald R. Augenstein, Richard A. Zuckerman, Herbert Estrada, Calvin R. Hastings | 2013-09-17 |
| 8122754 | Meter proving method and system | Gail P. Murray, Kerry D. Groeschel | 2012-02-28 |
| 7624616 | Meter proving method and system | Gail P. Murray, Kerry D. Groeschel | 2009-12-01 |
| 7152490 | Methods for determining transducer delay time and transducer separation in ultrasonic flow meters | Klaus J. Zanker | 2006-12-26 |
| 6950768 | Self-tuning ultrasonic meter | Klaus J. Zanker, Gail P. Murray | 2005-09-27 |
| 6871666 | Bi-directional dual chamber orifice fitting | Thomas Henry Loga, Archie Dodd Begg | 2005-03-29 |
| 6837113 | Enhanced velocity estimation in ultrasonic flow meters | Gail P. Murray, Abhishek Bhatt | 2005-01-04 |
| 6816808 | Peak switch detector for transit time ultrasonic meters | Klaus J. Zanker, Gail P. Murray | 2004-11-09 |
| 5983730 | Method and apparatus for measuring the time of flight of a signal | Winsor Letton, James McClellan, Baocang Jia, Anni S. Wey, Wen-Hung Chang | 1999-11-16 |
| 5209258 | Apparatus and method for minimizing pulsation-induced errors in differential pressure flow measuring devices | James M. Sharp, Jr. | 1993-05-11 |
| 4325261 | Pulsed DC constant current magnetic flowmeter | John C. Grebe, Jr., Paul Kenneth Kuhn | 1982-04-20 |
| 4309909 | Crystal stabilized voltage to frequency converter with digital calibration for flowmeters | John C. Grebe, Jr. | 1982-01-12 |
| 4287773 | Bidirectional magnetic flowmeter | John C. Grebe, Jr. | 1981-09-08 |
| 4287774 | Magnetic flowmeter with ultrasonically cleaned electrodes | John C. Grebe, Jr. | 1981-09-08 |
| 4283958 | Magnetic flowmeter having automatic ranging | John C. Grebe, Jr. | 1981-08-18 |
| 4262542 | Family of magnetic flowmeters | John C. Grebe, Jr. | 1981-04-21 |
| 4262543 | Magnetic flowmeter having multiple stage amplifier with automatic zeroing | John C. Grebe, Jr. | 1981-04-21 |