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Inventor

Keith Heppenstall

Inventor
Cheshire, GB

Overview

4→
Patents
1979–2014
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

H03Kprimary
H03KPulse technique25%
F16HGearing13%
G01KMeasuring temperature13%
G01RMeasuring electric variables13%
H10DInorganic electric semiconductor devices13%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1013%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
8,742,825'MOSFET with temperature sense facility'20147,952,333'Circuit and method for determining current in a load'20114,449,162'Drive circuit'19844,150,416'Control circuit for a vehicle transmission system'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1984Patents assigned to LUCAS INDUSTRIES LTD (2)· patent assignee history
1979Based in London, GB· patent location history
1984Based in Greenford, GB· patent location history
2011–2014Patents assigned to NXP BV (2)· patent assignee history
2011Based in Stockport, GB· patent location history
2014Patents assigned to BROWN ADAM (1)· patent assignee history
2014Patents assigned to HEPPENSTALL KEITH (1)· patent assignee history
2014Patents assigned to KENNEDY IAN (1)· patent assignee history
2014Based in Cheshire, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LUCAS INDUSTRIES LTD21979–1984
NXP BV22011–2014
BROWN ADAM12014
HEPPENSTALL KEITHself12014
KENNEDY IAN12014
Locations
LocationPatentsSpan
Cheshire, GB12014
Stockport, GB12011
Greenford, GB11984
London, GB11979