JH

John C. Hardwick

DS Digital Voice Systems: 1 patents #1 of 2Top 50%
📍 Acton, MA: #86 of 223 inventorsTop 40%
🗺 Massachusetts: #4,566 of 12,682 inventorsTop 40%
Overall (2018): #365,065 of 503,207Top 75%
1
Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9990928 Audio watermarking via phase modification Daniel W. Griffin 2018-06-05