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Inventor

Graham P. Ansell

Inventor
Twyford, GB

Overview

5→
Patents
1991–1999
Patent span
Performing operations
Primary field (CPC B)

Patents· 5 as inventor

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

B01Dprimary
B01DSeparation36%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry29%
Y02ATechnologies for adaptation to climate change14%
Y02TClimate change mitigation technologies related to transportation14%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general7%
PatentTitleYear
5,993,762'Method of using catalyst containing noble metal and cerium dioxide'19995,943,857'Diesel engine exhaust gas purification method'19995,516,741'Reduced chlorine containing platinum catalysts'19965,480,854'Catalyst'19964,996,180'Catalyst of copper oxide and ceria'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1999Patents assigned to JOHNSON MATTHEY PLC (5)· patent assignee history
1991Based in Wokingham, GB· patent location history
1996–1999Based in Twyford, GB· patent location history
1996Based in Reading, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JOHNSON MATTHEY PLC51991–1999
Locations
LocationPatentsSpan
Twyford, GB31996–1999
Reading, GB11996
Wokingham, GB11991