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| Number | Title | Issue Date |
| 7305992 | Conforming earplug An earplug of the type that has a stem (12) and a plurality of flanges (21–23), is constructed to be stiff enough to be easily inserted into the ear canal, and to thereafter press with minimal force against the walls of the ear canal for comfort. The... | 12/11/2007 |
| 6860362 | Hearing aid instrument flexible attachment A flexible device having a flexible cup for attachment to a hearing aid housing for insertion in an ear canal of a user. The flexible cup includes an opening for securely accommodating a hearing aid housing upon insertion of the housing in the opening. The flexible ... | 03/01/2005 |
| 6820717 | Pressure regulating earplug An earplug is provided for use by an airplane passenger, which more slowly increases the pressure of air in the passenger's ear canal than the rate of increase in cabin air pressure as the airplane descends near the end of a flight. The earplug has a cavity (30 | 11/23/2004 |
| 6412593 | Cushioned earphones An earphone having a drive unit (22) carried by an earphone shell (20) and covered by an ear cushion (24) of auxetic foam.... | 07/02/2002 |
| 6349790 | Self-cleaning cerumen guard for a hearing device A self-cleaning cerumen guard includes a thermally activated element. The cerumen guard is mounted on the distal end of a hearing device adjacent to a sound port. The thermally activated element is oriented in a manner which causes it to retract when heat... | 02/26/2002 |
| 6137889 | Direct tympanic membrane excitation via vibrationally conductive assembly A device to be worn in the ear of a subject provides a direct vibrational drive to the tympanic membrane through a vibrationally conductive assembly which couples vibrations from a vibratory transducer positioned within the ear canal proximal to the tympa... | 10/24/2000 |
| 6135235 | Self-cleaning cerumen guard for a hearing device A self-cleaning cerumen guard includes a thermally activated element. The cerumen guard is mounted on the distal end of a hearing device adjacent to a sound port. The thermally activated element is oriented in a manner which causes it to retract when heat... | 10/24/2000 |
| 6129175 | Acoustical control plastisol earpieces An acoustical control earpiece comprised of non-foamed polyvinyl chloride plastisol. The earpieces may be acoustical hearing protective earplugs as well as overmolds and covers for audio sound reproduction devices such as headphones, speakers, and hearing... | 10/10/2000 |
| 4077069 | Synthetic tympanic membrane Synthetic anatomical members, such as a tympanic membrane and a malleus, are illustrated and a method for making them is disclosed. In accordance with the method, prepared collagenous tissue is placed in a mold and immersed in, or sprayed with, a buffered... | 03/07/1978 |
