JH

John F. Higginson

SL Sherritt Gordon Mines Limited: 1 patents #18 of 43Top 45%
📍 Trail, CA: #14 of 37 inventorsTop 40%
Overall (All Time): #4,107,984 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4192851 Leaching of metal sulphides Horst E. Hirsch, Ernest G. Parker, Godefridus M. Swinkels 1980-03-11