Philip G. Roper

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Tucson, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Low-flow valve
- Patent number 7,503,348
- Issue date Mar 17, 2009
- Rain Bird Corporation
- Kevin M. Irwin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Low-flow valve
- Patent number 7,201,187
- Issue date Apr 10, 2007
- Rain Bird Corporation
- Kevin M. Irwin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Low-flow valve
- Publication number 20060016494
- Publication date Jan 26, 2006
- Rain Bird Corporation
- Kevin M. Irwin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...