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ALLEN GROUP
US24 patents
Top patents by PatentIndex Score
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Heat exchanger
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Twin beam portable light assembly
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Chassis dynamometer construction
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US4391131AJul 5, 1983
Transmission testing apparatus and method
ALLEN GROUP31 citations91
US4144960AMar 20, 1979
Apparatus and methods for automatically transferring articles from a continuously movable conveyor to a work station
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US5150520ASep 29, 1992
Heat exchanger and method of assembly thereof
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US4418388ANov 29, 1983
Engine waveform pattern analyzer
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Heat exchanger
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US4744505AMay 17, 1988
Method of making a heat exchanger
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US5407004AApr 18, 1995
Heat exchanger and method of assembly thereof
ALLEN GROUP48 citations88
US5257662ANov 2, 1993
Heat exchanger assembly
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US5012749AMay 7, 1991
Radio controlled material handling apparatus
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US4029114AJun 14, 1977
Back filter automatic vehicle wash water reclaim system
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US4266482AMay 12, 1981
Vehicle conveyor system having double chain drive and selectable dolly
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US5226311AJul 13, 1993
Fluid flow generating apparatus
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US4489824ADec 25, 1984
Apparatus for stopping articles on a conveyor
ALLEN GROUP11 citations72
US4343348AAug 10, 1982
Apparatus and methods for simulating varying atmospheric conditions
ALLEN GROUP8 citations72
US4063327ADec 20, 1977
Vehicle washing apparatus with improved rear washer
ALLEN GROUP8 citations71
US3994041ANov 30, 1976
Vehicle washing and drying apparatus
ALLEN GROUP20 citations71
US5373896ADec 20, 1994
Heat exchanger assembly
ALLEN GROUP13 citations69
US4373186AFeb 8, 1983
Matrix method and apparatus for engine analysis
ALLEN GROUP16 citations64
US4244071AJan 13, 1981
Compact rollover vehicle wash apparatus
ALLEN GROUP3 citations60
US4087877AMay 9, 1978
Drum towel drier for vehicles
ALLEN GROUP4 citations60
US4016619AApr 12, 1977
Car washing apparatus having slow speed relief
ALLEN GROUP3 citations52