| Patents for H04R 25 - Deaf-aid sets (22,418) |
|---|
| 05/02/1991 | EP0424916A2 Magnetically shielded electromagnetic acoustic transducer |
| 05/02/1991 | DE4031131A1 Hearing aid with electronic switch - which can cut out or change control range of vol. control |
| 05/02/1991 | DE3936062A1 Mfg. ear-compatible plastic hearing aid - in a single operation so the hearing aid is small and unobtrusive |
| 04/30/1991 | US5012520 Hearing aid with wireless remote control |
| 04/24/1991 | EP0423172A1 Active noise reduction system. |
| 04/23/1991 | US5010575 Audio current pick-up device |
| 04/18/1991 | WO1991005445A1 Hand-carried auditory assistance apparatus |
| 04/18/1991 | WO1991005444A1 Ergonomic hearing aid |
| 04/16/1991 | US5008943 Modular hearing aid with lid hinged to faceplate |
| 04/16/1991 | US5008058 Coating elastic member with hardenable material; fitting to ear |
| 04/11/1991 | DE3933584A1 Hearing aid tube preventing entry of earwax - uses plug of sintered material to increase surface area of tube end |
| 04/10/1991 | EP0421338A1 Acoustic prosthesis with transcranial transmission for subjects affected by monolateral deafness of marked monolateral sensorineural deafness |
| 04/10/1991 | EP0421233A2 Device for preventing the penetration of foreign bodies in a sound transducer |
| 04/09/1991 | US5007090 Programming device for hearing aids and/or hearing aid components |
| 04/09/1991 | US5006055 Apparatus for manufacturing an otoplastic |
| 04/05/1991 | WO1991005446A1 Ear piece having disposable, compressible polymeric foam sleeve |
| 04/04/1991 | WO1991004644A1 Apparatus and method for manipulating devices in orifices |
| 04/02/1991 | CA1282206C Middle-ear prosthesis |
| 03/28/1991 | WO1991005405A1 Output amplifier |
| 03/27/1991 | EP0419153A2 Electrical component connection and combinations of electrical components for a hearing aid |
| 03/26/1991 | US5003608 Apparatus and method for manipulating devices in orifices |
| 03/26/1991 | US5003607 Hearing aid with audible control for volume adjustment |
| 03/26/1991 | US5003606 Antihowling hearing aid |
| 03/26/1991 | US5002151 Ear piece having disposable, compressible polymeric foam sleeve |
| 03/21/1991 | WO1991003913A1 Multi-peak speech processor |
| 03/21/1991 | WO1991003887A1 Three wire system for cochlear implant processor |
| 03/20/1991 | CN2073637U Radio & hearing aid convertible amplifier |
| 03/20/1991 | CA2025574A1 Electrical component connection and combinations of electrical components |
| 03/19/1991 | US5001762 Miniature modular volume control and integrated circuit assembly for use with a hearing air |
| 03/13/1991 | EP0416155A1 Behind-the-ear hearing aid |
| 03/08/1991 | WO1991003914A1 Electromagnetic resonant vibrator |
| 03/08/1991 | CA2022237A1 Three wire system for cochlear implant processor |
| 03/06/1991 | EP0415677A2 Hearing aid having compensation for acoustic feedback |
| 02/28/1991 | DE3927797A1 Im-ohr-hoergeraet mit schall-ausgleichskanal In-ear hearing aid with noise-compensating channel |
| 02/26/1991 | US4996712 Hearing aids |
| 02/24/1991 | WO1991003139A1 Intra-aural hearing aid with sound balancing channel |
| 02/24/1991 | CA2063806A1 In-the-ear hearing aid with sound compensating channel |
| 02/21/1991 | DE3927233A1 Angular contact for hearing aid - has shank, closing housing aperture, fitted to contact members |
| 02/19/1991 | US4995085 Hearing aid adaptable for telephone listening |
| 02/13/1991 | EP0412902A2 Electroacoustic device for hearing needs including noise cancellation |
| 02/12/1991 | US4993072 Shielded electret transducer and method of making the same |
| 02/12/1991 | US4992966 Calibration device and auditory prosthesis having calibration information |
| 02/11/1991 | CA2022888A1 Electroacoustic device for hearing needs including noise cancellation |
| 01/31/1991 | DE3924708A1 Mechano-cutaneous sound transmission using multiple spatial patterns - excited by vibrating magnets in concealed pectoral appts. with microphone and control unit worn as brooch |
| 01/30/1991 | EP0410034A1 Method and device for manufacturing a housing shell for an in-the-ear hearing aid, and a housing shell produced according to this method |
| 01/29/1991 | US4989251 Hearing aid programming interface and method |
| 01/29/1991 | US4988333 Implantable middle ear hearing aid system and acoustic coupler therefor |
| 01/27/1991 | CA2021879A1 Housing shell for an in-the-ear hearing aid and method and apparatus for manufacturing the same |
| 01/23/1991 | EP0271539A4 Mass production auditory canal hearing aid |
| 01/23/1991 | EP0269680A4 Patient controlled master hearing aid |
| 01/23/1991 | CN2069721U Osseosonometer |
| 01/22/1991 | US4987597 Apparatus for closing openings of a hearing aid or an ear adaptor for hearing aids |
| 01/22/1991 | US4987383 Integrated compression amplifier having programmable threshold voltage |
| 01/15/1991 | US4985925 Active noise reduction system |
| 01/15/1991 | CA1279019C In-the-ear hearing aid |
| 01/09/1991 | EP0406721A2 Storage container for round batteries |
| 01/09/1991 | EP0349599B1 Paradoxical hearing aid |
| 01/08/1991 | US4984277 Protection element for all-in-the-ear hearing aid |
| 01/07/1991 | WO1991001075A1 Electrodynamic sound generator for a hearing aid |
| 01/07/1991 | CA2062796A1 Electrodynamic sound generator for hearing aid |
| 01/03/1991 | DE3921551A1 Housing for behind ear hearing aid - has frame defining two separate chambers for microphone and earpiece respectively |
| 01/01/1991 | US4982434 Supersonic bone conduction hearing aid and method |
| 01/01/1991 | US4982317 Integrated voltage multiplier circuit for low supply voltage |
| 12/27/1990 | CA1278159C Method and apparatus for manufacturing an otoplastic |
| 12/18/1990 | US4977976 Connector for hearing air earmold |
| 12/13/1990 | DE3919049A1 Spectacles with integral deaf aid vol. control - has visual indicator of acoustic loudness measured by integral or separate microphone |
| 12/11/1990 | CA1277761C Magnetic induction hearing aid |
| 12/06/1990 | DE3940632C1 Hearing aid directly exciting inner ear - has microphone encapsulated for implantation in tympanic cavity or mastoid region |
| 12/06/1990 | DE3918329A1 Hearing aid with electrical stimulation of inner ear - has microphone coupled to implanted system with inductive coupling element |
| 12/06/1990 | DE3917804A1 Cerumen protective cap for hearing aid - has internal channel shaped to prevent transmission of material into unit |
| 12/05/1990 | EP0400630A2 Implantable hearing aid |
| 12/04/1990 | US4974606 Hearing protector and method of manufacturing the same |
| 11/29/1990 | WO1990014739A1 Analysis of waveforms |
| 11/29/1990 | WO1990010363A3 Power efficient hearing aid |
| 11/27/1990 | US4973917 Output amplifier |
| 11/22/1990 | EP0398237A2 Method for manufacturing hearing aids |
| 11/20/1990 | US4972488 Ear wax barrier and acoustic attenuator for a hearing aid |
| 11/20/1990 | US4972487 Auditory prosthesis with datalogging capability |
| 11/15/1990 | WO1990013953A1 Induction-based assistive listening system |
| 11/14/1990 | EP0396831A2 Method and apparatus for determining acoustic parameters of an auditory prosthesis using software model |
| 11/13/1990 | US4969900 Middle ear prosthesis and method for mounting it |
| 11/13/1990 | US4969534 Hearing aid employing a viscoelastic material to adhere components to the casing |
| 11/08/1990 | DE4013188A1 Edelmetall-polymer-verbundmaterialien und daraus hergestellte flexible duennfilmleiter Precious metal-polymer-composite materials made therefrom and flexible duennfilmleiter |
| 11/07/1990 | EP0396300A2 Communications headset |
| 11/02/1990 | CA2014261A1 Noble metal-polymer composites and flexible thin-film conductors prepared therefrom |
| 11/01/1990 | WO1990013215A1 Improved adaptive beam-forming for noise reduction |
| 10/31/1990 | DE3913789A1 Roller switch with centre position setting - has spring that acts in either direction from central position |
| 10/23/1990 | US4965831 Hearing aid housing with retaining frame |
| 10/17/1990 | EP0392312A1 Amplifier for hearing aid |
| 10/16/1990 | US4964170 Hearing aid |
| 10/16/1990 | CA1275157C Method and apparatus for the manufacture of an otoplastic shell |
| 10/13/1990 | CA2013727A1 Switching amplifier |
| 10/09/1990 | US4962537 Shape adaptable in-the-ear hearing aid |
| 10/09/1990 | US4961434 Array of recessed radially oriented bipolar electrodes |
| 10/03/1990 | EP0389825A1 Circuit for use in programmable hearing aids |
| 10/03/1990 | EP0389569A1 Circuit arrangement with adjustable active and/or passive components. |
| 10/02/1990 | US4961230 Hearing aid programming interface |
| 09/26/1990 | EP0388501A1 Electrical hearing aid, particularly behind the ear hearing equipment |
| 09/19/1990 | CN2062533U Micro hearing aid hidden in ear |
| 09/18/1990 | US4957478 Partially implantable hearing aid device |