Richard M. Simmons

📍 Cambridge, MA: #3,914 of 8,183 inventorsTop 50%

🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%

Overall (All Time): #2,341,157 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4645879	Call-routing device	—	1987-02-24
4578535	Videotex system	—	1986-03-25