DD

David A. Didion

CM Calmac Manufacturing: 1 patents #5 of 8Top 65%
📍 Cheverly, MD: #12 of 23 inventorsTop 55%
🗺 Maryland: #19,431 of 35,612 inventorsTop 55%
Overall (All Time): #3,980,404 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4687588 Refrigerant mixture of trichlorofluoromethane and dichlorohexafluoropropane Mark Owen McLinden, Calvin D. MacCracken 1987-08-18