RH

Ralph D. Heifner

AN Anaconda: 1 patents #3 of 31Top 10%
AR Atlantic Richfield: 1 patents #468 of 1,061Top 45%
Overall (All Time): #2,354,032 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4527779 Metal recovery compression mechanism David J. Roth, Lawrence R. Culler 1985-07-09
4386956 Metal recovery process from aluminum dross David J. Roth, Lawrence R. Culler 1983-06-07