Gregory P. Widin has been granted 6 US patents while listed as an inventor at 3M . The first was granted in 1990 and the most recent in June 1995. Gregory P. Widin ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Gregory P. Widin in Lake Elmo, MN, US.
Patents per Year Patents granted per year, 1990 to 1995 Bar chart with a peak of 3 patents in 1990. peak 3 1990: 3 patents 1990 1991: 1 patents 1991 1995: 2 patents 1995
Issued Patents All Time
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Showing 1–6 of 6 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
RE34961 Method and apparatus for determining acoustic parameters of an auditory prosthesis using software model Mats B. Dotevall 1995-06-06
5402496 Auditory prosthesis, noise suppression apparatus and feedback suppression apparatus having focused adaptive filtering Sigfrid D. Soli , Kevin Buckley 1995-03-28
$5,157,000
4992966 Calibration device and auditory prosthesis having calibration information Stephan Mangold , Mats B. Dotevall 1991-02-12
$11,944,000
4953112 Method and apparatus for determining acoustic parameters of an auditory prosthesis using software model Mats B. Dotevall 1990-08-28
$4,264,000
4944301 Method for determining absolute current density through an implanted electrode Christopher van den Honert 1990-07-31
4901353 Auditory prosthesis fitting using vectors — 1990-02-13
$16,381,000
