DC

Donald W. Cartner

HM Hopkins Manufacturing: 1 patents #47 of 78Top 65%
📍 Kansas City, MO: #625 of 1,876 inventorsTop 35%
🗺 Missouri: #8,863 of 23,789 inventorsTop 40%
Overall (All Time): #2,368,744 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D267291 Windshield cleaning brush Evan L. Hopkins 1982-12-21
D258779 Combined brush and scraper to be used in cleaning windshields Evan L. Hopkins 1981-04-07