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Lester Mathews
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Phoenix, AZ, US
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Patents Grants
last 30 patents
Information
Patent Grant
Cleaning system for swimming pools and the like
Patent number
6,592,752
Issue date
Jul 15, 2003
Caretaker Systems, Inc.
Lester Mathews
E04 - BUILDING
Information
Patent Grant
Adjustable mounting collar for a retractable cleaning head
Patent number
6,138,293
Issue date
Oct 31, 2000
Caretaker Systems, Inc.
Lester Mathews
E04 - BUILDING
Information
Patent Grant
Retractable aerator
Patent number
6,128,792
Issue date
Oct 10, 2000
Caretaker Systems, Inc.
Lester Mathews
E04 - BUILDING
Information
Patent Grant
Venturi-powered filtration system for pools
Patent number
5,785,846
Issue date
Jul 28, 1998
Caretaker Systems, Inc.
Steven R. Barnes
E04 - BUILDING
Information
Patent Grant
Return fitting with releasable cap
Patent number
5,040,250
Issue date
Aug 20, 1991
Caretaker Systems, Inc.
Steven R. Barnes
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Return fitting with releasable cap
Patent number
4,951,326
Issue date
Aug 28, 1990
Caretaker Systems, Inc.
Steven R. Barnes
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Dry well filtration system
Patent number
4,689,145
Issue date
Aug 25, 1987
Lester R. Mathews
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Fitting assembly for vinyl lined pools
Patent number
4,561,134
Issue date
Dec 31, 1985
Mathews; Lester
Lester R. Mathews
E04 - BUILDING
Information
Patent Grant
Rotatable hydrotherapy nozzle
Patent number
4,559,653
Issue date
Dec 24, 1985
Caretaker Systems, Inc.
Lester R. Mathews
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Pool nozzle head removing and replacing tool
Patent number
4,433,863
Issue date
Feb 28, 1984
Mathews; Lester R.
Lester R. Mathews
E04 - BUILDING
Information
Patent Grant
Rotational indexing nozzle arrangement
Patent number
4,371,994
Issue date
Feb 8, 1983
Mathews; Lester R.
Lester R. Mathews
E04 - BUILDING
Information
Patent Grant
Swimming pool cleaner
Patent number
4,347,979
Issue date
Sep 7, 1982
Lester R. Mathews
E04 - BUILDING
Information
Patent Grant
Apparatus for intermittent delivery of fluid under pressure
Patent number
4,271,541
Issue date
Jun 9, 1981
Lester R. Mathews
E04 - BUILDING
Information
Patent Grant
Swimming pool cleaner
Patent number
4,202,499
Issue date
May 13, 1980
Lester R. Mathews
E04 - BUILDING
Patents Applications
last 30 patents
Information
Patent Application
Programmed pool cleaning system
Publication number
20040210998
Publication date
Oct 28, 2004
Lester Mathews
E04 - BUILDING
Information
Patent Application
Cleaning system for swimming pools and the like
Publication number
20030085183
Publication date
May 8, 2003
Caretaker Systems, Inc.
Lester Mathews
E04 - BUILDING
Information
Patent Application
Programmed pool cleaning system
Publication number
20030056284
Publication date
Mar 27, 2003
Lester Mathews
E04 - BUILDING