DF

Dennis B. Freeman

OI Oxy Metal Industries: 2 patents #2 of 30Top 7%
OC Occidental Chemical: 1 patents #180 of 341Top 55%
Overall (All Time): #1,682,934 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4377487 Metal coating process and compositions 1983-03-22
4199488 Metal treating John L. Prosser 1980-04-22
4197340 Drawing composition and process Kevin Brown, Alan J. Koch 1980-04-08