JJ

James David Johnston

AT AT&T: 3 patents #42 of 1,042Top 5%
📍 Redmond, WA: #8 of 96 inventorsTop 9%
🗺 Washington: #45 of 1,789 inventorsTop 3%
Overall (1994): #12,388 of 165,921Top 8%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5341457 Perceptual coding of audio signals Joseph L. Hall 1994-08-23
5309526 Image processing system Thrasyvoulos N. Pappas, Robert J. Safranek, Nambirajan Seshadri, David L. Neuhoff 1994-05-03
5285498 Method and apparatus for coding audio signals based on perceptual model 1994-02-08