Inventor
ERDAHL JEFFREY C
US3 patents
Patents
3 patentsUS6366863B1Apr 2, 2002
Portable hearing-related analysis system
MICRO EAR TECHNOLOGY INC264 citations96
US6895345B2May 17, 2005
Portable hearing-related analysis system
MICRO EAR TECHNOLOGY INC49 citations94
US6647345B2Nov 11, 2003
Portable hearing-related analysis system
MICRO EAR TECHNOLOGY INC68 citations94