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Inventor

Steven W. Summers

Inventor
Radford Semele, GB

Overview

3→
Patents
1976–1997
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

Y10Tprimary
Y10TTechnical subjects covered by former us classification43%
B01DSeparation29%
C22BProduction and refining of metals14%
C25CProcesses for the electrolytic production, recovery or refining of metals14%
PatentTitleYear
5,605,628'Composite membranes'19975,376,442'Composite membranes'19943,932,230'Method of extracting gallium'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to BRITISH ALUMINIUM CO LTD (1)· patent assignee history
1976Based in Hazlemere, GB· patent location history
1994–1997Patents assigned to NORTH WEST WATER GROUP PLC (2)· patent assignee history
1994Based in Leamington Spa, GB· patent location history
1997Based in Radford Semele, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NORTH WEST WATER GROUP PLC21994–1997
BRITISH ALUMINIUM CO LTD11976
Locations
LocationPatentsSpan
Radford Semele, GB11997
Leamington Spa, GB11994
Hazlemere, GB11976