P

Inventor

CAMPBELL DON E K

US5 patents
⚠️ This page may combine multiple inventors who share the name “CAMPBELL DON E K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CAMPBELL DON E K

3 patents
US8800712B2Aug 12, 2014

Ear tip piece for attenuating sound

CAMPBELL DON E K47 citations89
US8180083B2May 15, 2012

Protective cover for behind-the-ear hearing aid device

CAMPBELL DON E K14 citations79
US8820474B2Sep 2, 2014

Ear tip piece for hearing instruments

CAMPBELL DON E K0 citations47

MAGNATONE HEARING AID CORP

1 patent
US7182820B2Feb 27, 2007

Methods and apparatus for cleaning a hearing aid device

MAGNATONE HEARING AID CORP60 citations93

POE MICHAEL L

1 patent
US8917892B2Dec 23, 2014

Automated real speech hearing instrument adjustment system

POE MICHAEL L18 citations72