Inventor
CANTRELL JOHN H
US17 patents
⚠️ This page may combine multiple inventors who share the name “CANTRELL JOHN H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NASA
11 patentsUS5746209AMay 5, 1998
Method of and apparatus for histological human tissue characterizationusing ultrasound
NASA271 citations96
US6413227B1Jul 2, 2002
Method and apparatus for assessment of changes in intracranial pressure
NASA39 citations92
US5214955AJun 1, 1993
Constant frequency pulsed phase-locked loop measuring device
NASA44 citations90
US6007489ADec 28, 1999
Method of and apparatus for histological human tissue characterization using ultrasound
NASA25 citations89
US6197130B1Mar 6, 2001
Method and apparatus to access optimum strength during processing of precipitation strengthened alloys
NASA15 citations84
US5121058AJun 9, 1992
Method and apparatus for using magneto-acoustic remanence to determine embrittlement
NASA21 citations81
US7845215B2Dec 7, 2010
Resonant difference-frequency atomic force ultrasonic microscope
NASA9 citations76
US6343513B1Feb 5, 2002
Non-destructive evaluation method and apparatus for measuring acoustic material nonlinearity
NASA12 citations74
US4912411AMar 27, 1990
Magneto acoustic emission apparatus for testing materials for embrittlement
NASA19 citations73
US11185232B2Nov 30, 2021
Methods for measuring phase dynamics and other properties
NASA0 citations62
US10390704B2Aug 27, 2019
Systems and methods for measuring phase dynamics and other properties
NASA1 citations62
US ARMY
3 patentsUS5736642AApr 7, 1998
Nonlinear ultrasonic scanning to detect material defects
US ARMY71 citations96
US5325339AJun 28, 1994
Absolute calibration technique for broadband ultrasonic transducers
US ARMY37 citations92
US5448995ASep 12, 1995
Method and apparatus for non-invasive evaluation of diaphragmatic function
US ARMY11 citations65