JH

John A. Hayden

📍 Brookline, MA: #23 of 89 inventorsTop 30%
🗺 Massachusetts: #582 of 2,831 inventorsTop 25%
Overall (1989): #95,044 of 140,708Top 70%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4833963 Electronic musical instrument using addition of independent partials with digital data bit truncation Robert H. Chidlaw, Ralph Muha 1989-05-30