DS

David Y. Sim

SC Schramm: 1 patents #1 of 3Top 35%
📍 Media, PA: #16 of 48 inventorsTop 35%
🗺 Pennsylvania: #2,522 of 7,529 inventorsTop 35%
Overall (2017): #444,834 of 506,227Top 90%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9551193 Drill pipe handling apparatus having improved pipe gripping mechanism Chris Cheeseman, Paul T. DiZillo 2017-01-24