Inventor
Norman C. Nissen
Inventor
Oakville, CA
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C22Bprimary
C22BProduction and refining of metals38%
C01GCompounds containing metals not covered by subclasses c01d or c01f19%
Y02PClimate change mitigation technologies in the production or processing of goods19%
C01BNon-metallic elements13%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds6%
C25CProcesses for the electrolytic production, recovery or refining of metals6%
PatentTitleYear
4,615,731'Hydrometallurgical processing of precious metal-containing materials'19864,304,644'Autoclave oxidation leaching of sulfide materials containing copper, nickel and/or cobalt'19814,229,270'Process for the recovery of metal values from anode slimes'19804,201,648'Nickel recovery from sulfur-deficient mattes'19804,163,046'Recovery of selenium'19794,073,860'Precipitation of filterable nickel and/or cobalt sulfides from acid solutions'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1981Patents assigned to INT NICKEL CO (5)· patent assignee history
1978Based in Toronto, CA· patent location history
1979–1986Based in Oakville, CA· patent location history
1986Patents assigned to INCO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| INT NICKEL CO | 5 | 1978–1981 |
| INCO LTD | 1 | 1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Oakville, CA | 5 | 1979–1986 |
| Toronto, CA | 1 | 1978 |