Roberto Sanchez

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Corona, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Double walled containment sumps
- Patent number 7,229,233
- Issue date Jun 12, 2007
- Xerxes Corporation
- John Burwell
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for pressure testing storage tanks
- Patent number 6,889,865
- Issue date May 10, 2005
- Xerxes Corporation
- John Burwell
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

Information Patent Application
Double walled containment sumps
- Publication number 20050201830
- Publication date Sep 15, 2005
- John Burwell
- G01 - MEASURING TESTING