Inventor
Henri Virtanen
Inventor
Pori, FI
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C25Cprimary
C25CProcesses for the electrolytic production, recovery or refining of metals39%
Y02PClimate change mitigation technologies in the production or processing of goods16%
C22BProduction and refining of metals13%
C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals13%
G01RMeasuring electric variables5%
B27KProcesses, apparatus or selection of substances for impregnating, staining, dyeing, bleaching of wood or similar materials, or treating of wood or similar materials with permeant liquids, not otherwise provided for3%
C25DProcesses for the electrolytic or electrophoretic production of coatings3%
C25FProcesses for the electrolytic removal of materials from objects3%
G05BControl or regulating systems in general3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
10,400,344Apparatus for protection of anodes and cathodes in a system of electrolysis cells201910,316,389Hydrometallurgical treatment of anode sludge20199,976,222Bubble collector guide and use thereof20189,932,683Method for metal electrowinning and an electrowinning cell20189,708,725'Method for maintenance of used permanent cathode plates'20179,695,520'Arrangement for measuring electric current in an individual electrode in an electrolysis system'20179,677,184'Measurement of electric current in an individual electrode in an electrolysis system'20179,556,530'Equipment and method for electrolytic recovery of metal'20178,551,306'Permanent cathode'20138,303,795'Method for arranging electrodes in an electrolytic process and an electrolytic system'20127,731,777'Method for processing anode sludge'20107,670,575'Method and device for treating anode slime'20107,366,582'Method for defining status index in copper electrolysis'20087,122,109'Method for the improvements of current efficiency in electrolysis'20067,002,171'Method for improving the quality of cathodes in electrolysis'20066,511,591'Method for the electrolytic refining of copper'20036,495,024'Method for the removal of arsenic from sulfuric acid solution'20026,342,136'Busbar construction for electrolytic cell'20026,187,156'Anode for electrolytic refining'20015,141,753'Method for utilizing the copper-arsenic precipitate created in the electroytic refining of copper in the production of anti-rot agents for wood'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2006Patents assigned to OUTOKUMPU OY (7)· patent assignee history
1992–2019Based in Pori, FI· patent location history
2008–2017Patents assigned to OUTOTEC OYJ (6)· patent assignee history
2012–2017Patents assigned to PALMU LAURI (3)· patent assignee history
2012–2017Patents assigned to VIRTANEN HENRI (3)· patent assignee history
2017–2019Patents assigned to OUTOTEC FINLAND OY (7)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| OUTOKUMPU OY | 7 | 1992–2006 |
| OUTOTEC FINLAND OY | 7 | 2017–2019 |
| OUTOTEC OYJ | 6 | 2008–2017 |
| PALMU LAURI | 3 | 2012–2017 |
| VIRTANEN HENRIself | 3 | 2012–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Pori, FI | 20 | 1992–2019 |