Hearing Aid
|
PAT. NO. |
Title |
| 652 |
4,400,590 |
Apparatus for multichannel cochlear
implant hearing aid system |
| 653 |
4,396,806 |
Hearing aid amplifier |
| 654 |
4,395,601 |
Modular hearing aid |
| 655 |
4,393,275 |
Hearing aid with controllable wide
range of frequency response |
| 656 |
4,392,547 |
Hearing aid earmolds |
| 657 |
4,379,988 |
Molded hearing aid and battery charger
|
| 658 |
4,375,016 |
Vented ear tip for hearing aid and
adapter coupler therefore |
| 659 |
4,366,349 |
Generalized signal processing hearing
aid |
| 661 |
4,361,734 |
Hearing aid |
| 662 |
4,361,733 |
Hard-of-hearing aid appliance |
| 663 |
4,354,065 |
Miniature hearing aid |
| 664 |
4,354,061 |
Sensing coil in hearing aid |
| 666 |
4,349,081 |
Method for retaining a hearing aid
in place and hearing aid harness |
| 667 |
RE31,031 |
Implantable electronic hearing aid
|
| 668 |
4,347,956 |
Hearing aid sheath and body harness
|
| 670 |
4,315,111 |
Hearing aid with remote momentary
shut off switch |
| 671 |
4,311,206 |
Hearing aid ear mold with improved
discrimination |
| 672 |
4,296,829 |
Hook-shaped part of a behind-the-ear
hearing aid |
| 673 |
4,291,203 |
Hearing aid device |
| 675 |
4,282,474 |
Life-prolonging device for hearing-aid
batteries |
| 676 |
4,276,781 |
Method of and arrangement for adapting
a hearing aid |
| 677 |
4,259,547 |
Hearing aid with dual pickup |
| 678 |
4,220,830 |
Hearing aid with modulated suppressed
carrier signal |
| 679 |
4,187,413 |
Hearing aid with digital processing
for: correlation of signals from plural microphones, dynamic range
control, or filtering using an erasable memory |
| 680 |
4,186,335 |
Hearing aid battery recharging apparatus
|
| 681 |
4,170,720 |
AGC circuit particularly for a hearing
aid |
| 683 |
4,153,758 |
Hearing aid battery holder |
| 684 |
4,152,551 |
Pocket hearing aid with slideable
mechanism for battery replacement and access openings |
| 685 |
4,142,072 |
Directional/omnidirectional hearing
aid microphone with support |
| 686 |
4,130,741 |
Hearing aid reliner and apparatus
for relining hearing aid ear molds |
| 687 |
4,119,814 |
Hearing aid with adjustable frequency
response |
| 688 |
4,118,604 |
Loudness contour compensated hearing
aid having ganged volume, bandpass filter, and compressor control
|
| 689 |
4,117,444 |
Hearing aid volume control |
| 690 |
4,109,116 |
Hearing aid receiver with plural
transducers |
| 691 |
4,099,035 |
Hearing aid with recruitment compensation
|
| 692 |
4,090,040 |
Hearing aid with acoustical frequency
response modification |
| 693 |
4,073,366 |
Disposable noise reducing hearing
aid attachment |
| 694 |
4,069,400 |
Modular in-the-ear hearing aid |
| 695 |
4,068,090 |
Hearing aid |
| 696 |
4,063,048 |
Implantable electronic hearing aid
|
| 697 |
4,052,572 |
Hearing aid |
| 698 |
4,052,571 |
Hearing aid with amplitude compression
achieved by clipping a modulated signal |
| 699 |
4,051,331 |
Speech coding hearing aid system
utilizing formant frequency transformation |
| 700 |
4,051,330 |
Hearing aid having adjustable directivity
|
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