Inventor

Derek Aldcroft

Inventor

Wirral, GB

Overview

1976–2005

Patent span

Chemistry

Primary field (CPC C)

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

C01Bprimary

C01BNon-metallic elements22%

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds22%

A61KPreparations for medical, dental or toiletry purposes11%

A61QSpecific use of cosmetics or similar toiletry preparations11%

C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties7%

C12HPasteurisation, sterilisation, preservation, purification, clarification or ageing of alcoholic beverages7%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%

C09DCoating compositions, e.g. paints, varnishes or lacquers4%

A01NPreservation of bodies of humans or animals or plants or parts thereof2%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1976–2000Patents assigned to CROSFIELD JOSEPH & SONS (3)· patent assignee history

1976–2000Based in Wirral, GB· patent location history

1978Patents assigned to JOSEPH CROSFIELD AND SONS LIMI (1)· patent assignee history

1990–1997Patents assigned to UNILEVER PATENT HOLDINGS (8)· patent assignee history

1993Patents assigned to BERGH FOODS CO (1)· patent assignee history

1993–1994Based in Great Sutton, GB· patent location history

1997Based in South Glamor, GB· patent location history

2003–2005Based in Cheshire, GB· patent location history

2005Patents assigned to INEOS SILICAS LTD (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
UNILEVER PATENT HOLDINGS	8	1990–1997
CROSFIELD JOSEPH & SONS	3	1976–2000
BERGH FOODS CO	1	1993
INEOS SILICAS LTD	1	2005
JOSEPH CROSFIELD AND SONS LIMI	1	1978

Locations