Inventor

Duncan Barry Hodgson

Inventor

Leamington Spa, GB

Overview

9→

Patents

1976–1979

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 9 as inventor

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

F02Pprimary

F02PIgnition, other than compression ignition, for internal-combustion engines17%

Y02TClimate change mitigation technologies related to transportation17%

B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general11%

F02DControlling combustion engines11%

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general6%

F02BInternal-combustion piston engines6%

G01RMeasuring electric variables6%

G07CTime or attendance registers6%

G08GTraffic control systems6%

G10LSpeech analysis techniques or speech synthesis6%

PatentTitleYear

4,151,815'Operation timing control system for an internal combustion engine'1979 4,146,001'Angular position transducers for use in engine timing controls'1979 4,117,453'Vehicle headlamp control circuits'1978 4,109,174'Drive circuits for a piezoelectric stack'1978 3,998,193'Spark ignition systems'1976 3,996,554'Data transmission system'1976 3,958,170'Full wave rectifiers'1976 3,955,174'Direction indicator system for road vehicles with trailer adapter means'1976 3,947,811'Fault indicating systems in vehicles'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1979Patents assigned to LUCAS INDUSTRIES LTD (4)· patent assignee history

1976–1979Patents assigned to LUCAS ELECTRICAL CO LTD (3)· patent assignee history

1976Patents assigned to CAV LTD (1)· patent assignee history

1976Patents assigned to LUCAS LTD JOSEPH (1)· patent assignee history

1976–1979Based in Leamington Spa, GB· patent location history

1976–1978Based in Whitnash, GB· patent location history

1979Based in Knowle, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LUCAS INDUSTRIES LTD	4	1976–1979
LUCAS ELECTRICAL CO LTD	3	1976–1979
CAV LTD	1	1976
LUCAS LTD JOSEPH	1	1976

Locations

Location	Patents	Span
Leamington Spa, GB	4	1976–1979
Whitnash, GB	4	1976–1978
Knowle, GB	1	1979