Inventor
Stephen M. Olafson
Inventor
Tucson, AZ, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C22Bprimary
C22BProduction and refining of metals33%
Y02PClimate change mitigation technologies in the production or processing of goods33%
C01GCompounds containing metals not covered by subclasses c01d or c01f11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
C09KMaterials for miscellaneous applications, not provided for elsewhere4%
C21BManufacture of iron or steel4%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management4%
PatentTitleYear
7,025,899'Concentrated solutions of oxime metal extractants and method of formulating extractant compositions therefrom'20066,432,166'Dust control'20026,395,062'Process for recovery of metals from metal-containing ores'20026,177,055'Process for extracting and recovering copper'20016,156,280'Process for removing manganese from organic solutions of oximes and nickel ore treatment process'20005,788,844'Process for removing and recovering ammonia from organic metal extractant solutions in a liquid-liquid metal extraction process'19985,470,552'Nickel extraction process'19955,196,095'Process for recovering a metal from an aqueous solution comprising a mixture of metal chlorides'19934,957,714'Solvent extraction process'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–2001Patents assigned to HENKEL CORP (6)· patent assignee history
1990–2006Based in Tucson, AZ, US· patent location history
2002–2006Patents assigned to COGNIS CORP (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HENKEL CORP | 6 | 1990–2001 |
| COGNIS CORP | 3 | 2002–2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tucson, AZ, US | 9 | 1990–2006 |