LR

Leonard Rosen

📍 Brookline, MA: #1,183 of 3,196 inventorsTop 40%
🗺 Massachusetts: #33,482 of 88,656 inventorsTop 40%
Overall (All Time): #1,618,802 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6470187 Multi-base station cordless telephone Howard Rosen 2002-10-22
6198904 Interactive learning system — 2001-03-06
5772446 Interactive learning system — 1998-06-30