HJ

Howard Percival Johnson, Jr.

📍 Upper Marlboro, MD: #3 of 10 inventorsTop 30%
🗺 Maryland: #551 of 2,389 inventorsTop 25%
Overall (2002): #203,684 of 266,432Top 80%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6382656 Anti-rattle device for a trailer hitch — 2002-05-07