DH

David R. Hanssen

DE Digital Equipment: 1 patents #1,005 of 2,100Top 50%
📍 Sterling, MA: #89 of 143 inventorsTop 65%
🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #3,866,650 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5175814 Direct manipulation interface for Boolean information retrieval Peter Anick, Jeffrey Brennan, Rex A. Flynn, Bryan Alvey, Jeffrey Robbins 1992-12-29