Lester Engelmann

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Woodland, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Testing valve assemblies
- Patent number 6,675,110
- Issue date Jan 6, 2004
- Watts RegulatoryCo.
- Lester Engelmann
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Backflow prevention assembly
- Patent number 6,502,598
- Issue date Jan 7, 2003
- Watts Investment Company
- Lester Engelmann
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Backflow prevention assembly
- Patent number 6,293,013
- Issue date Sep 25, 2001
- Watts Investment Company
- Lester Engelmann
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Backflow prevention assembly
- Patent number 6,192,933
- Issue date Feb 27, 2001
- Watts Investment Company
- Lester Engelmann
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Method and apparatus for automatic remote testing of backflow preve...
- Patent number 5,713,240
- Issue date Feb 3, 1998
- Ames Company, Inc.
- Lester B. Engelmann
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Apparatus and method for automatically disabling pressure relief va...
- Patent number 5,669,405
- Issue date Sep 23, 1997
- Ames Company, Inc.
- Lester B. Engelmann
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
Testing valve assemblies
- Publication number 20030135334
- Publication date Jul 17, 2003
- Lester B. Engelmann
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Backflow prevention assembly
- Publication number 20020157710
- Publication date Oct 31, 2002
- Lester Engelmann
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...