Method and apparatus for correcting temperature variations in ultrasonic flowmeters Grant US-5831175-A United States of America 03 Nov 1998
Driver-receiver apparatus for use with ultrasonic flowmeters Grant US-5777238-A United States of America 07 Jul 1998
Sampling method and apparatus for use with ultrasonic flowmeters Grant US-5753824-A United States of America 19 May 1998
Calibration method for use with ultrasonic flowmeters Grant US-5748504-A United States of America 05 May 1998