JJ

John W. Spencer, Jr.

📍 Rising Sun, MD: #1 of 3 inventorsTop 35%
🗺 Maryland: #713 of 2,889 inventorsTop 25%
Overall (2011): #256,967 of 364,097Top 75%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7900393 Landscape material and method for making same Ralph T. Spencer 2011-03-08