William Scott Crawford

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Long Beach, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for cleaning percolation basins
- Patent number 7,875,123
- Issue date Jan 25, 2011
- William Randall Crawford, III
- B08 - CLEANING

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for cleaning percolation basins
- Publication number 20060225771
- Publication date Oct 12, 2006
- William Randall Crawford
- B08 - CLEANING
Information Patent Application
Method and apparatus for remediation and prevention of fouling of r...
- Publication number 20050161380
- Publication date Jul 28, 2005
- William Randall Crawford
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Method and apparatus for remediation and prevention of fouling of r...
- Publication number 20040057839
- Publication date Mar 25, 2004
- William Randall Crawford
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING