Inventor
CARDWELL PAUL H
14 patents
Patents
14 patentsUS4042664AAug 16, 1977
Method for separating metal constituents from ocean floor nodules
DEEPSEA VENTURES INC56 citations95
US4146572AMar 27, 1979
Simultaneous extraction of metal values other than copper from manganese nodules
DEEPSEA VENTURES INC8 citations72
US4137291AJan 30, 1979
Extraction of metal values from manganese nodules
DEEPSEA VENTURES INC19 citations72
US4093698AJun 6, 1978
Process for the simultaneous extraction of metal values from manganese nodules
DEEPSEA VENTURES INC15 citations72
US4012483AMar 15, 1977
Separation of cobalt from nickel in ammoniacal solutions using 8-hydroxyquinolines
DEEPSEA VENTURES INC7 citations72
US3992507ANov 16, 1976
Halidation of manganiferous ore to obtain metal values and recovery and recycle of halide values
DEEPSEA VENTURES INC14 citations72
US3950486AApr 13, 1976
Method for separating metal constituents from ocean floor nodules
DEEPSEA VENTURES INC15 citations72
US4002717AJan 11, 1977
Refining of manganese oxide ores
DEEPSEA VENTURES INC17 citations71
US3990891ANov 9, 1976
Halidation of nonferrous metal values in manganese oxide ores
DEEPSEA VENTURES INC7 citations71
US3940470AFeb 24, 1976
Direct recovery of metals from fluid anhydrous metal halides derived from marine nodule halidation
DEEPSEA VENTURES INC7 citations71
US3930974AJan 6, 1976
Two stage selective leaching of metal values from ocean floor nodule ore
DEEPSEA VENTURES INC5 citations61
US3950162AApr 13, 1976
Reduction to manganese metal using metal transporting compounds
DEEPSEA VENTURES INC2 citations55
US3951647AApr 20, 1976
Reduction method for producing manganese metal
DEEPSEA VENTURES INC6 citations54
US3984520AOct 5, 1976
Separation of nickel and cobalt and manganese in solution
DEEPSEA VENTURES INC3 citations53