| Patents for H04R 25 - Deaf-aid sets (22,418) |
|---|
| 05/10/1988 | CA1236559A1 Hearing aid apparatus |
| 05/03/1988 | US4741344 Ear canal electrode |
| 05/03/1988 | CA1236208A1 Hearing aid |
| 04/26/1988 | CA1235791A1 Suspension for electro-acoustical transducers |
| 04/19/1988 | US4739512 Hearing aid |
| 04/19/1988 | US4739511 Hearing aid |
| 04/13/1988 | EP0263667A2 Modular hearing aid with lid hinged to faceplate |
| 04/13/1988 | EP0263294A2 Wireless charging circuit for a hearing aid |
| 04/13/1988 | EP0263254A1 Implantable hearing aid |
| 04/05/1988 | US4736430 Hearing aid |
| 04/05/1988 | US4735759 Ear plug formed from impression of user's auditory canal |
| 03/24/1988 | WO1988002208A1 Acoustic transducer with improved electrode spacing |
| 03/17/1988 | DE3716162C1 Hearing aid |
| 03/16/1988 | EP0259906A2 A system of stimulating at least one nerve and/or muscle fibre |
| 03/15/1988 | US4731850 Programmable digital hearing aid system |
| 03/08/1988 | US4730283 Acoustic transducer with improved electrode spacing |
| 03/08/1988 | US4729451 Receiver suspension and acoustic porting system |
| 03/08/1988 | US4729366 Implantable hearing aid and method of improving hearing |
| 03/01/1988 | US4728934 Tactile stimulation device for hearing-impaired individuals |
| 03/01/1988 | US4728327 Middle-ear prosthesis |
| 02/24/1988 | EP0256349A1 Hearing aid with pivotable cover |
| 02/23/1988 | US4727582 Hearing aid with adjustable flexible connection member |
| 02/16/1988 | US4724922 Acoustic earpiece |
| 02/11/1988 | WO1988000847A1 Cortical hearing aid |
| 02/11/1988 | DE3627117A1 Hearing aid with a housing to be worn behind the ear |
| 02/03/1988 | EP0254925A1 Hearing aid with contactspring disposition |
| 02/02/1988 | US4723293 Hearing aid apparatus |
| 01/28/1988 | DE3624619A1 Hearing aid with a contact spring arrangement |
| 01/28/1988 | DE3624588A1 Hearing aid with a battery compartment which can be pivoted out |
| 01/28/1988 | DE3624568A1 Hearing aid with a battery compartment which can be pivoted out |
| 01/28/1988 | DE3618002C1 Method for producing an otoplasty with anatomic sound channel guidance |
| 01/21/1988 | DE3623906A1 Hearing aid |
| 01/20/1988 | EP0253612A2 Improvements in or relating to hearing aids |
| 01/13/1988 | EP0252205A2 Digital hearing enhancement apparatus |
| 01/12/1988 | US4719430 Low voltage class B amplifier with low value decoupling capacitors |
| 01/07/1988 | EP0250679A2 Programmable sound reproducing system |
| 01/07/1988 | DE3720591A1 Hook or ear tube for behind-the-ear hearing aids |
| 01/05/1988 | US4718099 Automatic gain control for hearing aid |
| 01/05/1988 | US4716985 In-the-ear hearing aid |
| 12/22/1987 | US4714842 Integrated injection logic circuits |
| 12/16/1987 | EP0248955A1 Hearing aid and method of manufacture thereof |
| 12/08/1987 | US4712245 In-the-ear hearing aid with the outer wall formed by rupturing a two-component chamber |
| 12/08/1987 | US4712244 Directional microphone arrangement |
| 12/08/1987 | US4711243 Cortical hearing aid |
| 12/03/1987 | WO1987007465A1 Mass production auditory canal hearing aid |
| 12/03/1987 | WO1987007464A1 Patient controlled master hearing aid |
| 12/02/1987 | EP0247649A1 Cochlear implant prosthesis current switching and power supply |
| 12/02/1987 | EP0247390A1 In-the-ear hearing aid |
| 12/01/1987 | US4710961 Miniature hearing aid having a bindable multi-layered amplifier arrangement |
| 11/25/1987 | EP0246970A1 Hearing aid devices |
| 11/24/1987 | US4708657 Audio-frequency converter apparatus, for treating subjects suffering from audio-phonatory and auditive-verbal disorders, and a method of using the apparatus |
| 11/19/1987 | EP0245742A1 Method and device for making an ear mould |
| 11/19/1987 | EP0245741A1 Method and device for making an ear impression and transforming the ear impression into a ear mould |
| 11/19/1987 | EP0245739A1 Mounting for a transducer, in particular a receiver |
| 11/19/1987 | DE3616773A1 Hearing aid |
| 11/19/1987 | DE3616648A1 In-the-ear hearing aid |
| 11/19/1987 | DE3616557A1 In-the-ear hearing aid |
| 11/17/1987 | US4706778 In-the-ear-canal hearing aid |
| 11/11/1987 | EP0244671A1 Method and arrangement for carrying out an acoustic comparison measurement |
| 11/05/1987 | DE3614739A1 Elastic support for an earphone |
| 11/05/1987 | DE3614459A1 Hearing aid |
| 10/27/1987 | US4702345 Hearing aid retention device |
| 10/22/1987 | WO1987006422A1 Hearing aid |
| 10/21/1987 | EP0242038A2 Magnetic induction hearing aid |
| 10/21/1987 | EP0241594A1 Hearing aid |
| 10/20/1987 | US4701958 Control circuit |
| 10/20/1987 | US4701640 Electret transducer and method of fabrication |
| 10/14/1987 | EP0241101A1 Cochlear implant system with psychological testing or programming with mapped patient responses provided to encoder |
| 10/14/1987 | EP0240798A1 Hearing aid noise suppression system |
| 10/08/1987 | DE3638747C1 Hearing aid |
| 09/30/1987 | EP0238887A1 Hearing aid having a housing to be worn behind the ear |
| 09/29/1987 | US4696287 Transmission system for implanted hearing aids |
| 09/24/1987 | DE3608964A1 Hearing aid amplifier |
| 09/22/1987 | US4696032 Voice switched gain system |
| 09/16/1987 | EP0237203A2 Hearing aid circuit |
| 09/08/1987 | CA1226529A1 Receiver suspension and acoustic porting system |
| 08/25/1987 | US4689820 Hearing aid responsive to signals inside and outside of the audio frequency range |
| 08/25/1987 | US4689819 Class D hearing aid amplifier |
| 08/25/1987 | US4689818 Resonant peak control |
| 08/20/1987 | DE3604709A1 Method of producing an otoplasty for hearing aids |
| 08/18/1987 | US4686765 Method for making an intracochlear electrode array |
| 08/13/1987 | WO1987004630A1 Sleep and relaxation promoting aid |
| 08/13/1987 | DE3603704A1 Hearing aid to be worn in the ear |
| 08/12/1987 | EP0231721A2 Automatic gain control for hearing aid |
| 08/11/1987 | US4685448 For use in the treatment of speech or hearing abnormalities |
| 08/05/1987 | EP0231162A1 Middle ear prosthesis |
| 08/05/1987 | EP0143816B1 A coupling element for a hearing aid |
| 07/23/1987 | DE3601440A1 Hearing aid to be worn in the ear |
| 07/22/1987 | EP0229230A1 Directional-microphone arrangement |
| 07/14/1987 | US4680799 Hearing aid |
| 07/14/1987 | US4680798 Audio signal processing circuit for use in a hearing aid and method for operating same |
| 07/14/1987 | US4679650 Hearing aid ear mold end piece for the auditory canal and hearing aid ear mold |
| 07/07/1987 | US4679240 Touch sensitive hearing aid volume control circuit |
| 07/01/1987 | EP0226613A1 Noise supression system. |
| 06/30/1987 | US4677675 Response-modifying acoustic couplers for hearing aids |
| 06/25/1987 | DE3545088A1 Alarm device |
| 06/24/1987 | EP0226333A1 Vocal tactile feedback apparatus |
| 06/16/1987 | US4674123 Test bench for the adjustment of electro-acoustic channels and particularly of devices for auditory correction |
| 06/09/1987 | US4672672 Miniature hearing aid |
| 06/04/1987 | DE3542616A1 Process for producing an individual ear cavity |