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Inventor

Nigel I. Steward

Inventor
Kitimat, CA

Overview

2→
Patents
1993–2000
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

B01Dprimary
B01DSeparation25%
C04BLime, magnesia25%
C25CProcesses for the electrolytic production, recovery or refining of metals25%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact25%
PatentTitleYear
6,161,307'Fluid bed system for cooling hot spent anode butts'20005,232,598'Porous inorganic membranes'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to CERAMESH LTD (1)· patent assignee history
1993Based in Banbury, GB· patent location history
2000Patents assigned to ALCAN INT LTD (1)· patent assignee history
2000Based in Kitimat, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ALCAN INT LTD12000
CERAMESH LTD11993
Locations
LocationPatentsSpan
Kitimat, CA12000
Banbury, GB11993