DP

David W. Petr

AT AT&T: 1 patents #10,626 of 18,772Top 60%
BL Bell Telephone Laboratories: 1 patents #567 of 1,445Top 40%
Overall (All Time): #1,235,789 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8321211 System and method for multi-channel pitch detection 2012-11-27
4607364 Multimode data communication system Jeffrey Neumann, George W. Schramm, John B. Sharp 1986-08-19
4518950 Digital code converter 1985-05-21
4437087 Adaptive differential PCM coding 1984-03-13