Inventor

William Barry Featherstone

Inventor

Guisborough, GB

Overview

1979–2012

Patent span

Chemistry

Primary field (CPC C)

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

C07Cprimary

C07CAcyclic or carbocyclic compounds20%

C21BManufacture of iron or steel20%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry10%

B04CApparatus using free vortex flow, e.g. cyclones10%

B07BSeparating solids from solids by sieving, screening, sifting or by using gas currents10%

C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel10%

F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace10%

Y02PClimate change mitigation technologies in the production or processing of goods10%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1979Patents assigned to ICI LTD (1)· patent assignee history

1979Based in Middlesbrough, GB· patent location history

1983Patents assigned to ICI PLC (1)· patent assignee history

1983Based in Nunthorpe, GB· patent location history

1995–1998Patents assigned to DAVY MCKEE STOCKTON (3)· patent assignee history

1995–2012Based in Guisborough, GB· patent location history

1998Based in Cleveland, GB· patent location history

1998Based in Cleveland, OH, US· patent location history

2012Patents assigned to EVANS PETER (1)· patent assignee history

2012Patents assigned to FEATHERSTONE WILLIAM BARRY (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DAVY MCKEE STOCKTON	3	1995–1998
EVANS PETER	1	2012
FEATHERSTONE WILLIAM BARRYself	1	2012
ICI LTD	1	1979
ICI PLC	1	1983

Locations