Inventor
Godefridus M. Swinkels
Inventor
Rossland, CA
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C22Bprimary
C22BProduction and refining of metals32%
Y02PClimate change mitigation technologies in the production or processing of goods29%
C01GCompounds containing metals not covered by subclasses c01d or c01f18%
C01BNon-metallic elements7%
C01DCompounds of alkali metals, i.e. lithium, sodium, potassium, rubidium, caesium, or francium7%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals4%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds4%
PatentTitleYear
4,569,676'Separation and purification of salts in a non-convective solar pond'19864,564,508'Process for the recovery of sodium carbonate from salt mixtures'19864,525,332'Recovery of germanium from aqueous solutions'19854,263,109'Precipitation of chloride from zinc sulphate solution'19814,201,748'Process for thermal-activation of chalcopyrite-pyrite concentrates'19804,193,970'Process for the precipitation of iron as jarosite'19804,192,851'Leaching of metal sulphides'19804,157,912'Process for recovery of copper and zinc from complex sulphides'19794,100,250'Selective precipitation of copper chlorides from aqueous solutions with unsaturated aliphatic hydrocarbons'19784,097,271'Hydrometallurgical process for recovering copper and other metal values from metal sulphides'19784,082,629'Hydrometallurgical process for treating metal sulfides containing lead sulfide'19784,049,770'Recovery of copper and zinc as sulfides from copper-iron sulfides'19773,964,901'Production of copper and sulfur from copper-iron sulfides'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1980Patents assigned to SHERRITT GORDON MINES LTD (6)· patent assignee history
1976–1986Based in Rossland, CA· patent location history
1978–1986Patents assigned to COMINCO LTD (10)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| COMINCO LTD | 10 | 1978–1986 |
| SHERRITT GORDON MINES LTD | 6 | 1976–1980 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rossland, CA | 13 | 1976–1986 |