WE

William Henry Elfring

📍 Philadelphia, PA: #31 of 203 inventorsTop 20%
🗺 Pennsylvania: #1,270 of 5,047 inventorsTop 30%
Overall (2004): #89,011 of 270,089Top 35%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6815010 Method of inhibiting the loss of solar reflectance over time of an exterior elastomeric Donald A. Winey 2004-11-09