RS

Richard H. Spellman

📍 Randolph, MA: #4 of 13 inventorsTop 35%
🗺 Massachusetts: #4,639 of 13,863 inventorsTop 35%
Overall (2022): #286,970 of 548,613Top 55%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11315408 Emergency communications system David L. Nelson 2022-04-26