Inventor

David E. Clarke

Inventor

Wirral, GB

Overview

17→

Patents

1976–2019

Patent span

Chemistry

Primary field (CPC C)

Patents· 17 as inventor

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

C11Dprimary

C11DDetergent compositions35%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers10%

A61KPreparations for medical, dental or toiletry purposes6%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations6%

B66FHoisting, lifting, hauling or pushing, not otherwise provided for, e.g. devices which apply a lifting or pushing force directly to the surface of a load6%

D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials6%

H01HElectric switches6%

Y02ATechnologies for adaptation to climate change6%

A47LDomestic washing or cleaning3%

A61LMethods or apparatus for sterilising materials or objects in general3%

PatentTitleYear

10,493,025Neuromuscular aid2019 10,034,831Neuromuscular aid2018 6,303,565'Method of stabilizing fabric softening compositions'2001 6,251,850'Fabric softening compositions containing emulsified silicone'2001 4,759,868'General-purpose cleaning composition'1988 4,741,853'Solid bleaching block'1988 4,555,354'Detergents products'1985 4,554,099'Opaque general-purpose cleaning composition comprising alcohol esterified resin copolymers'1985 4,508,635'General-purpose cleaning composition comprising nonionic surfactant and alcohol esterified resin copolymer'1985 4,448,704'Article suitable for wiping hard surfaces'1984 4,394,888'Bridging bar attachment means for bi-elevational platform lift'1983 4,348,293'Water-insoluble, water-permeable bag having a water-soluble or water-dispersable protective layer and containing a particulate detergent composition'1982 4,196,093'Production of detergent compositions'1980 4,188,304'Detergent composition in a water-insoluble bag having a water-sensitive seal'1980 4,091,906'Collapsible safety guard for platform lift'1978 3,967,227'Actuator system with ambient temperature compensation'1976 3,959,691'Motor protector'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to TEXAS INSTRUMENTS INC (2)· patent assignee history

1978–1983Patents assigned to ADVANCE LIFTS INC (2)· patent assignee history

1980–1988Patents assigned to LEVER BROTHERS LTD (9)· patent assignee history

1980–2001Based in Wirral, GB· patent location history

1982–1985Based in Merseyside, GB· patent location history

1983Based in St. Charles, IL, US· patent location history

1984–2001Based in Bromborough, GB· patent location history

2001Patents assigned to UNILEVER HOME & PERSONAL CARE (2)· patent assignee history

2018–2019Patents assigned to CRAMPSAWAY INC (2)· patent assignee history

2018–2019Based in Los Gatos, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LEVER BROTHERS LTD	9	1980–1988
ADVANCE LIFTS INC	2	1978–1983
CRAMPSAWAY INC	2	2018–2019
TEXAS INSTRUMENTS INC	2	1976
UNILEVER HOME & PERSONAL CARE	2	2001

Locations

Location	Patents	Span
Wirral, GB	5	1980–2001
Bromborough, GB	4	1984–2001
Los Gatos, California, US	2	2018–2019
Merseyside, GB	2	1982–1985
St. Charles, Illinois, US	1	1983