| Patents for H04R 25 - Deaf-aid sets (22,418) |
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| 10/20/1992 | WO1992019080A1 Improvements in and relating to transmission line loudspeakers |
| 10/20/1992 | US5157371 Potentiometer retention mechanism and method of mounting |
| 10/20/1992 | CA2108696A1 Improvements in and relating to transmission line loudspeakers |
| 10/15/1992 | WO1992017991A1 Inconspicuous communication method utilizing remote electromagnetic drive |
| 10/08/1992 | DE4125379C1 Hearing aid device with amplitude limitation - has limiting circuit inserted in feedback path for amplifier stage for matching frequency characteristic to each individual user |
| 10/08/1992 | DE4125378C1 Hearing aid device with improved speech discrimination characteristics - has amplification setting control fitted between preamplifier and amplifier |
| 10/06/1992 | US5153387 Layered earplug |
| 10/02/1992 | CA2106459A1 Inconspicuous communication method utilizing remote electromagnetic drive |
| 09/30/1992 | EP0505382A1 Coil assemblies. |
| 09/23/1992 | EP0504703A2 Hearing aid with electrical contact means within a battery holder |
| 09/23/1992 | EP0504460A1 Hearing aid with a switching amplifier output stage |
| 09/22/1992 | CA2063512A1 Hearing aid with an end stage that operates in switching mode |
| 09/16/1992 | EP0503536A2 Method for optimizing the fitting of hearing aids |
| 09/16/1992 | CN2116317U Spectacles frame-like audiphone |
| 09/15/1992 | CA1307579C Method and apparatus for reducing acoustical distortion |
| 09/09/1992 | EP0502073A1 Hearing aid. |
| 09/08/1992 | US5146051 Housing shell for an in-the-ear hearing aid |
| 09/02/1992 | EP0500988A1 Hearing aid to be worn on the head |
| 09/02/1992 | EP0500700A1 High fidelity hearing aid amplifier. |
| 09/02/1992 | CN2114936U Electronic vibration-proof earphone |
| 09/01/1992 | US5144675 Variable recovery time circuit for use with wide dynamic range automatic gain control for hearing aid |
| 09/01/1992 | US5144674 Digital programming device for hearing aids |
| 08/26/1992 | EP0499940A1 Electromechanic transducer for implantable hearing aids |
| 08/26/1992 | EP0499939A1 Charging system for implantable hearing aids and Tinnitus masks |
| 08/26/1992 | EP0499699A1 Hearing aid with at least two microphones |
| 08/12/1992 | EP0498592A2 Coloured hearing aid shell |
| 08/06/1992 | WO1992013430A1 Improved hearing apparatus |
| 08/06/1992 | WO1992011738A3 Radio-based hearing aid system |
| 08/05/1992 | EP0360795A4 Electrode assembly for cochlear implant |
| 07/22/1992 | EP0494991A1 Ear piece having disposable, compressible polymeric foam sleeve. |
| 07/22/1992 | CN2110969U Deaf-aid set capable of distinguishing sound direction |
| 07/22/1992 | CN1063009A Communication device for transmitting audio information to user |
| 07/21/1992 | US5133016 Hearing aid with replaceable drying agent |
| 07/21/1992 | US5131411 Custom-fitting earplug formed in situ using foaming action |
| 07/21/1992 | US5131128 Protection element for all-in-the-ear hearing aid and tool for use in the replacement hereof |
| 07/18/1992 | CA2100773A1 Hearing apparatus |
| 07/16/1992 | DE4116533C1 Hearing aid with exchangeable decorative covering - has two=part housing linked by retention plates which can grip ear lobe |
| 07/14/1992 | US5131046 High fidelity hearing aid amplifier |
| 07/14/1992 | US5129546 Storage container for button-shaped batteries |
| 07/14/1992 | CA1305055C Wound dressing membrane |
| 07/09/1992 | WO1992011738A2 Radio-based hearing aid system |
| 07/08/1992 | EP0493519A1 Output amplifier |
| 07/08/1992 | EP0263254B1 Implantable hearing aid |
| 07/07/1992 | US5128566 Variable attenuator circuit |
| 06/28/1992 | WO1992012605A1 Supersonic bone conduction hearing aid and method |
| 06/25/1992 | DE4041105A1 Verfahren zum herstellen von individuell an die konturen eines ohrkanals angepassten otoplastiken oder ohrpassstuecken Method for the manufacture of individual contours of the ear of a channel matched earmolds or ohrpassstuecken |
| 06/24/1992 | EP0491072A1 Hearing aid |
| 06/24/1992 | EP0490930A1 Electromagnetic resonant vibrator. |
| 06/22/1992 | WO1992011737A1 Method of preparing an otoplasty or adaptive ear piece individually matched to the shape of an auditory canal |
| 06/17/1992 | DE4039668A1 Audio compression amplifier avoiding cut=off - achieves by input independent reference current inputs to multiplier |
| 06/16/1992 | US5122734 Method and apparatus for prescaler desynchronization |
| 06/10/1992 | EP0489023A1 Intra-aural hearing aid with sound balancing channel. |
| 05/29/1992 | WO1992009251A1 Communication device for transmitting audio information to a user |
| 05/29/1992 | CA2096974A1 Communication device for transmitting audio information to a user |
| 05/27/1992 | EP0487413A1 Electronic device for a programmable miniature hearing aid, in particular of the intraauricular type |
| 05/27/1992 | CN2105819U Solar energy audiophone |
| 05/26/1992 | US5117461 Electroacoustic device for hearing needs including noise cancellation |
| 05/26/1992 | CA1301906C Induction-based assistive listening system |
| 05/20/1992 | EP0191075B1 System and method for compensating hearing deficiences |
| 05/19/1992 | CA1301305C Hearing aid programming interface |
| 05/14/1992 | DE4035506A1 Electronic appts. housing for hearing aid worn behind ear - has openings at sides of frame for engagement with lid having lugs to latch parts together |
| 05/13/1992 | EP0485357A2 Hearing aid with filter circuit |
| 05/13/1992 | EP0450004A4 Multi-peak speech processor |
| 05/12/1992 | CA1300732C Auditory prosthesis fitting using vectors |
| 05/08/1992 | WO1992009181A1 Contact transducer assembly for hearing devices |
| 05/08/1992 | CA2095432A1 Contact transducer assembly for hearing devices |
| 05/06/1992 | EP0483702A2 Switched amplifier |
| 05/06/1992 | EP0483701A2 Method of noise reduction in hearing aids |
| 05/06/1992 | EP0483185A1 Electrodynamic sound generator for a hearing aid |
| 05/06/1992 | CN2103876U Double-sound track stereophony deaf hearing aid |
| 05/05/1992 | US5111506 Power efficient hearing aid |
| 05/05/1992 | US5111419 Electronic filters, signal conversion apparatus, hearing aids and methods |
| 05/02/1992 | WO1992008330A1 Bimodal speech processor |
| 05/02/1992 | CA2095344A1 Bimodal speech processor |
| 04/30/1992 | DE4033673A1 Wireless alarm and communication system for hard of hearing - provides inductive transmission to receiver worn by user e.g. in shirt or jacket pocket |
| 04/22/1992 | EP0481529A2 Hearing aid circuit |
| 04/22/1992 | EP0481528A2 Hearing aid circuit |
| 04/21/1992 | US5107540 Electromagnetic resonant vibrator |
| 04/21/1992 | US5105904 Cerumen trap for hearing aids |
| 04/21/1992 | US5105811 Cochlear prosthetic package |
| 04/21/1992 | CA1299279C Hearing aid comprising a printed circuit film |
| 04/15/1992 | EP0480097A1 Hearing-aid with data memory |
| 04/14/1992 | CA1298924C Circuit that incorporates passive and active components |
| 04/08/1992 | EP0479015A2 Gain control device for hearing aid |
| 04/08/1992 | EP0478892A2 In-the-ear hearing aid |
| 03/31/1992 | US5101435 Combined microphone and magnetic induction pickup system |
| 03/31/1992 | US5099947 Wax guard for hearing aids |
| 03/19/1992 | WO1992004171A1 Method and apparatus for the curing of fusible materials and use hereof |
| 03/18/1992 | EP0475507A1 Amplifier arrangement |
| 03/18/1992 | EP0475066A2 Eeprom analog switch |
| 03/17/1992 | US5097224 Self-biasing, low noise amplifier of extended dynamic range |
| 03/17/1992 | US5095904 Multi-peak speech procession |
| 03/17/1992 | CA1297575C Hearing aid transducer |
| 03/17/1992 | CA1297422C Patient controlled master hearing aid |
| 03/17/1992 | CA1297421C Mass production auditory canal hearing aid |
| 03/11/1992 | EP0473664A1 Analysis of waveforms. |
| 03/10/1992 | CA1297185C Hearing aid circuit |
| 03/05/1992 | WO1992003893A1 Electromagnetic middle-ear hearing aid |
| 03/03/1992 | CA1296797C Apparatus for closing openings of a hearing aid or an ear adaptor for hearing aids |
| 02/27/1992 | DE4026766A1 Elektromagnetisches mittelohr-hoerhilfsgeraet Electromagnetic middle ear hearing aid |