Leon A. Johnson, Jr.

📍 Silver Spring, MD: #27 of 93 inventorsTop 30%

🗺 Maryland: #462 of 2,094 inventorsTop 25%

Overall (2005): #152,038 of 245,428Top 65%

Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6902404	Visual aid using contact lenses	—	2005-06-07