RL

Rainer Langwald

PE Petrolite: 1 patents #81 of 143Top 60%
Overall (All Time): #3,901,069 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4918959 Method for preventing the buildup of oily deposits on rolling mill scale Dennis P. Parazak, Charles W. Burkhardt 1990-04-24