DH

Douglas J Heller

📍 Flourtown, PA: #1 of 4 inventorsTop 25%
🗺 Pennsylvania: #1,270 of 5,047 inventorsTop 30%
Overall (2004): #232,320 of 270,089Top 90%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6683623 System and method for providing and accessing educational information over a computer network James S. Cassano, Jonathan Schmalzbach 2004-01-27