Inventor
Walter W. Harvey
Inventor
Bedford, MA, US
Overview
Patents· 5 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 metals43%
B01DSeparation14%
C01CAmmonia14%
C10KPurifying or modifying the chemical composition of combustible gases containing carbon monoxide14%
E21BEarth or rock drilling14%
PatentTitleYear
4,291,920'In situ exploitation of deep set porphyry ores'19814,192,854'Process for removing hydrogen sulfide and ammonia from gaseous streams'1980RE030005'Method for the electrolytic recovery of metal employing improved electrolyte convection'19794,033,839'Method for series electrowinning and electrorefining of metals'19773,979,275'Apparatus for series electrowinning and electrorefining of metal'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1977Patents assigned to KENNECOTT COPPER CORP (2)· patent assignee history
1976–1980Based in Bedford, MA, US· patent location history
1980Patents assigned to EIC CORP (1)· patent assignee history
1981Patents assigned to KENNECOTT CORP (1)· patent assignee history
1981Based in Arlington, MA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KENNECOTT COPPER CORP | 2 | 1976–1977 |
| EIC CORP | 1 | 1980 |
| KENNECOTT CORP | 1 | 1981 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bedford, Massachusetts, US | 4 | 1976–1980 |
| Arlington, Massachusetts, US | 1 | 1981 |