| Patents for G01H 5 - Measuring propagation velocity of ultrasonic, sonic or infrasonic waves (840) |
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| 11/30/2004 | US6823716 Device for precision measurement of speed of sound in a gas |
| 11/24/2004 | CN2658727Y 声速测量仪 Sound velocity meter |
| 11/17/2004 | CN2656965Y Emitting probe of solid sound speed meter |
| 11/03/2004 | CN1174260C Sonic data logging system, sonic data logging method and downhole tool for sonic data logging |
| 11/02/2004 | US6810742 Method of and an apparatus for determining the speed of sound in a material |
| 09/14/2004 | US6789426 Microfluidic channels with integrated ultrasonic transducers for temperature measurement and method |
| 09/02/2004 | WO2004046506B1 Acoustic devices to measure ultrasound velocity in drilling mud |
| 09/02/2004 | US20040171936 Ultrasonic transmitting/receiving device and method for fabricating the same |
| 09/01/2004 | EP1452243A2 Ultrasonic transmitting/receiving device and method of fabricating the same |
| 07/07/2004 | CN2624188Y Acoustics energy converter centralizer |
| 07/07/2004 | CN1156679C Ultrasonic bolt fastening force measuring device |
| 07/06/2004 | CA2294775C Measuring relative density of a gas |
| 07/01/2004 | US20040128072 Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic |
| 06/24/2004 | DE19606083B4 Verzögerungsleitung für einen Ultraschallmeßfühler und Verfahren zur Verwendung desselben The same delay line for a Ultraschallmeßfühler and methods of use |
| 06/23/2004 | EP0966226B1 A system for sharing electrocardiogram electrodes and transducers |
| 06/16/2004 | EP1428000A1 Apparatus for testing aramid fiber elevator cables |
| 06/03/2004 | WO2004046669A1 Device for precision measurement of speed of sound in a gas |
| 06/03/2004 | WO2004046506A1 Acoustic devices to measure ultrasound velocity in drilling mud |
| 06/03/2004 | CA2506743A1 Acoustic devices to measure ultrasound velocity in drilling mud |
| 05/27/2004 | WO2004020112B1 Methods and apparatus for ultrasonic determination of red blood cell indices |
| 05/27/2004 | US20040099062 Apparatus for testing aramid fiber elevator cables |
| 05/20/2004 | US20040095847 Acoustic devices to measure ultrasound velocity in drilling mud |
| 05/20/2004 | US20040093948 Device for precision measurement of speed of sound in a gas |
| 05/18/2004 | US6738312 Arrangement and method for measuring the speed of sound |
| 05/12/2004 | EP0998670B1 Measuring relative density of a gas |
| 04/15/2004 | US20040069065 System and method for determining particle size in particulate solids |
| 04/06/2004 | CA2334974C Measuring the speed of sound of a gas |
| 03/30/2004 | US6712138 Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties |
| 03/18/2004 | US20040054283 Apparatus for hematocrit determination and method for its use |
| 03/16/2004 | CA2233852C Ultrasonic device for determining bone characteristics |
| 03/11/2004 | WO2004020112A1 Methods and apparatus for ultrasonic determination of red blood cell indices |
| 03/11/2004 | CA2497157A1 Methods and apparatus for ultrasonic determination of red blood cell indices |
| 03/03/2004 | EP1393025A2 Method for determining the mean speed of sound in a body of water |
| 02/04/2004 | CN2602355Y Triaxial indoor piezoelectric ceramics organ soil sample wave velocity metering equipment |
| 02/03/2004 | US6684683 Method and apparatus for characterizing the barrier properties of members of combinatorial libraries |
| 01/27/2004 | US6681635 Acoustic transit time measuring system |
| 01/08/2004 | WO2004003541A1 Optoacoustic measurement of material properties by a two-point laser-induced generation of ultrasonic waves |
| 01/06/2004 | CA2127327C Ultrasonic stand-off gauge |
| 01/02/2004 | EP1295092B1 Arrangement and method for measuring the speed of sound |
| 12/30/2003 | US6668653 Method and apparatus for measuring LSAW propagation characteristics |
| 12/17/2003 | CN2593170Y Ultrasonic grating sound velocimeter |
| 12/16/2003 | US6662660 Apparatus for testing aramid fiber elevator cables |
| 12/10/2003 | CN2591600Y Ultrasound screw bolt fastening force tester |
| 12/10/2003 | CN1460843A Gas sound speed measuring instrument |
| 12/04/2003 | WO2003099133A1 Method, probe and apparatus for determining by ultrasonic process properties of an observed medium in particular the cortex of a bone |
| 12/04/2003 | WO2003099132A1 Method, probe and apparatus for non-invasive evaluation of a travel time or speed of ultrasounds along an interface, in particular a bone interface |
| 12/04/2003 | US20030221490 Method of and an apparatus for determining the speed of sound in a material |
| 12/04/2003 | US20030221489 Method and apparatus for measuring surface wave traveling time |
| 12/03/2003 | EP1367390A1 Method and apparatus for determination of sound velocity of a material depending on the temperature |
| 11/13/2003 | WO2003094576A1 Transmission characteristic measuring device, transmission characteristic measuring method, and amplifier |
| 11/05/2003 | CN1454309A Arrangement and method for measuring the speed of sound |
| 10/22/2003 | EP1099112B1 Measuring the speed of sound in a gas with a small spherical resonator and a non radial mode for analysis of gas mixtures |
| 10/08/2003 | EP0998238B1 System for carrying out surgery, biopsy and ablation of a tumor or other physical anomaly |
| 09/30/2003 | US6628570 Laser velocimetry detection of underwater sound |
| 09/24/2003 | EP1060367B1 Determination of acoustic velocity in bone |
| 09/03/2003 | CN2570752Y Ultrasonic grating sound velocity apparatus |
| 08/28/2003 | US20030160194 Method and apparatus for characterizing the barrier properties of members of combinatorial libraries |
| 08/27/2003 | EP1099298B1 Synthesising a sine wave |
| 08/13/2003 | EP1334345A1 System and method for determining particle size in particulate solids |
| 08/13/2003 | EP1157258B1 Method and device for measuring propagation time of a signal, in particular a ultrasonic signal |
| 07/10/2003 | DE10223786C1 Determining sound velocity in steel as a function of temperature for wall thickness determination, measures interval between signals reflected at locations within heating zone |
| 07/02/2003 | CN1427248A Sound wave sensor |
| 06/25/2003 | EP0877960B1 Sonic data logging system |
| 06/10/2003 | US6577557 Water column sound speed profiling system |
| 06/03/2003 | US6573766 Synthesizing a sine wave |
| 05/28/2003 | CN1420345A Ultrasonic bolt fastening force measuring devcie |
| 05/27/2003 | US6568281 Ultrasonic-wave propagation-time measuring method, gas-pressure measuring method, gas-flow rate measuring method, and gas sensor |
| 05/15/2003 | US20030092990 Ultrasonic imaging device |
| 05/13/2003 | US6561033 Line length measuring device for fishing reel |
| 05/02/2003 | EP1306060A1 System for carrying out surgery biopsy and ablation of a tumor or other physical anomaly |
| 04/17/2003 | US20030072219 Laser velocimetry detection of underwater sound |
| 03/27/2003 | WO2003025525A1 Apparatus for testing aramid fiber elevator cables |
| 03/26/2003 | EP1295092A1 Arrangement and method for measuring the speed of sound |
| 03/20/2003 | US20030052695 Apparatus for testing aramid fiber elevator cables |
| 03/18/2003 | US6535828 Method and apparatus for visualizing elastic wave propagation in a solid substance |
| 02/13/2003 | US20030029242 Microfluidic channels with integrated ultrasonic transducers for temperature measurement and method |
| 02/13/2003 | US20030029241 Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties |
| 12/04/2002 | EP1262148A1 Ultrasonic imaging device |
| 11/19/2002 | US6481288 Measuring the speed of sound of a gas |
| 11/07/2002 | WO2001042808A3 Method for determining the mean speed of sound in a body of water |
| 11/05/2002 | US6474137 Measuring relative density of a gas |
| 10/30/2002 | CN2519252Y Sonic wave transducer |
| 10/03/2002 | US20020139192 Line length measuring device for fishing reel |
| 09/25/2002 | EP0965058B1 Tracking data sheath |
| 09/17/2002 | US6450968 Method for determining gas content in a breathing apparatus, and a breathing apparatus operating according to the method |
| 08/29/2002 | US20020117003 Ultrasonic-wave propagation-time measuring method and gas concentration sensor |
| 08/27/2002 | US6442510 Method and apparatus for determining transit-time differentials for signal waveforms for real-time pattern recognition, localization and monitoring of optical and acoustic signals |
| 08/21/2002 | EP1233266A2 Ultrasonic-wave propagation-time measuring method and gas concentration sensor |
| 07/31/2002 | CN2503470Y Sea water sound velocimeter |
| 07/23/2002 | US6422081 Ultrasonic sound velocity measuring method and its apparatus |
| 06/20/2002 | US20020075758 Method and apparatus for measuring LSAW propagation characteristics |
| 05/16/2002 | WO2002039091A1 System and method for determining particle size in particulate solids |
| 05/16/2002 | CA2427526A1 System and method for determining particle size in particulate solids |
| 05/14/2002 | US6388948 Method and system for determining underwater effective sound velocity |
| 04/24/2002 | EP1199548A2 Method and apparatus for measuring lsaw propagation characteristics |
| 03/27/2002 | CN1342262A Method and device for measuring propagation time of signal, in particular ultrasonic signal |
| 02/27/2002 | EP0693906B1 System and method for external acoustic bone velocity measurement |
| 02/13/2002 | CN2476802Y Sound velocimeter |
| 02/05/2002 | US6343513 Non-destructive evaluation method and apparatus for measuring acoustic material nonlinearity |
| 12/20/2001 | WO2001096822A1 Arrangement and method for measuring the speed of sound |