Patents in grey text have expired
HIMPP Son01: Title: Hinged hearing aid
US5825896
HIMPP Son02: Title: Disposable hearing aid
US5881159
HIMPP Son03: Title: Peritympanic hearing instrument
US6205227
HIMPP Son04: Title: Hearing aid digital filter
US6292571
HIMPP Son05: Title: Microphone assembly for hearing aid with JFET flip-chip buffer
US6366678
HIMPP Son06: Title: Modular electroacoustic instrument
US6389143
HIMPP Son07: Title: Power source for a hearing aid
US6410997
HIMPP Son08: Title: Disposable hearing aid with integral power source
US6473511
HIMPP Son09: Title: Hearing aid with flexible shell
US6865279
HIMPP Son10: Title: Low distortion compression amplifier
US6927632
HIMPP Son11: Title: Hearing aid with large diaphragm microphone element including a printed circuit board
US7003127
HIMPP Son12: Title: Hearing aid
US7010137
HIMPP Son13: Title: A flexible hearing aid tip with an integral receiver
US7082206
HIMPP Son14: Title: One-size-fits-all uni-ear hearing instrument
US7092543
HIMPP Son15: Title: Disposable modular hearing aid
US7113611
HIMPP Son16: Title: Hearing aid with large diaphragm microphone element including a printed circuit board
US7221768
HIMPP Son17: Title: Disposable modular hearing aid
US7403629
HIMPP Son18: Title: Hearing aid
US7536023
HIMPP Son19: Title: Hearing aid circuit with integrated switch and battery
US7756284
HIMPP Son20: Title: Hearing aid with tuned microphone cavity
US7756285
HIMPP Son21: Title: Hearing aid packaging
US7987977
HIMPP Son22: Title: Hearing aid
US8121326
HIMPP Son23: Title: Hearing aid circuit with integrated switch and battery
US8121327