William T. Valdez

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Oceanside, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Check valve for downspouts
- Patent number 10,837,177
- Issue date Nov 17, 2020
- William T. Valdez
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Check valve for drain pipes
- Patent number 8,459,298
- Issue date Jun 11, 2013
- Free Flow Products, LLC
- William T. Valdez
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
CHECK VALVE FOR DOWNSPOUTS
- Publication number 20180016792
- Publication date Jan 18, 2018
- FREE FLOW PRODUCTS, LLC
- William T. Valdez
- E04 - BUILDING