Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DH

David R. Hearn

ELElscint: 4 patents #17 of 112Top 20%
Wellesley, MA: #317 of 837 inventorsTop 40%
Massachusetts: #27,608 of 88,656 inventorsTop 35%
Overall (All Time): #1,302,018 of 4,157,543Top 35%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4958365 Medical imaging device using triggered plasma cathode flash X-ray source A. Robert Sohval, Gerald Cooperstein, Shyke A. Goldstein 1990-09-18
4592079 Medical imaging device using triggered plasma cathode flash X-ray sources A. Robert Sohval, Gerald Cooperstein, Shyke A. Goldstein 1986-05-27
4570106 Plasma electron source for cold-cathode discharge device or the like A. Robert Sohval, Gerald Cooperstein, David Fleischer, Shyke A. Goldstein 1986-02-11
4458180 Plasma electron source for cold-cathode discharge device or the like A. Robert Sohval, Gerald Cooperstein, David Fleischer, Shyke A. Goldstein 1984-07-03