MK

Michael A. Kefauver

AL American Telephone And Telegraph Company, At&T Bell Laboratories: 1 patents #330 of 1,086Top 35%
📍 Reynoldsburg, OH: #108 of 211 inventorsTop 55%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #3,946,924 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4726056 Shared flexible rating of telecommunications calls Chungming An, Martin Erk, Richard A. Williams 1988-02-16