Inventor
BURWELL JOHN
US15 patents
⚠️ This page may combine multiple inventors who share the name “BURWELL JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
XERXES CORP
12 patentsUS4948007AAug 14, 1990
Underground storage tank of corrosion-resistant materials with internal steel rib
XERXES CORP23 citations92
US5720404AFeb 24, 1998
Female-molded underground storage tank and method of making
XERXES CORP21 citations91
US6551024B1Apr 22, 2003
System and method for detecting leaks in underground storage tank
XERXES CORP35 citations88
US5220823AJun 22, 1993
Double walled underground storage tank
XERXES CORP28 citations88
US7028967B2Apr 18, 2006
Tank retaining system
XERXES CORP13 citations80
US6517719B1Feb 11, 2003
Oil and water separator
XERXES CORP7 citations73
US6398057B1Jun 4, 2002
Triple walled underground storage tank
XERXES CORP9 citations72
US6467344B1Oct 22, 2002
Underground storage tank buoyancy and buoyancy safety factor calculation method and apparatus
XERXES CORP10 citations69
US7150582B2Dec 19, 2006
Form for street box in underground storage tank installation
XERXES CORP4 citations62
US7337590B2Mar 4, 2008
Tank retaining system
XERXES CORP3 citations59
US7229233B2Jun 12, 2007
Double walled containment sumps
XERXES CORP3 citations58
US6889865B1May 10, 2005
Method and apparatus for pressure testing storage tanks
XERXES CORP5 citations52