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

David E. Blair

DXDximaging: 1 patents #8 of 22Top 40%
EAE.I. Du Pont De Nemours And: 1 patents #4,343 of 8,010Top 55%
Chester Springs, PA: #107 of 227 inventorsTop 50%
Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,290,626 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5471287 System for replenishing liquid electrostatic developer William A. Houle, Gregg A. Lane, James R. Larson, Kathryn A. Pearlstine 1995-11-28
4923778 Use of high percent solids for improved liquid toner preparation Bradley J. Gollhardt, James R. Larson 1990-05-08