Assignee
ELK CORP
US15 patents
Top patents by PatentIndex Score
US6915662B2Jul 12, 2005
Hydrocarbon gas processing
ELK CORP107 citations98
US6526777B1Mar 4, 2003
LNG production in cryogenic natural gas processing plants
ELK CORP128 citations98
US6742358B2Jun 1, 2004
Natural gas liquefaction
ELK CORP101 citations97
US6889523B2May 10, 2005
LNG production in cryogenic natural gas processing plants
ELK CORP61 citations96
US7010937B2Mar 14, 2006
Natural gas liquefaction
ELK CORP59 citations94
US6945075B2Sep 20, 2005
Natural gas liquefaction
ELK CORP39 citations93
US6936329B2Aug 30, 2005
Fastener-free composite roofing product
ELK CORP89 citations93
US7361617B2Apr 22, 2008
Fire resistant composite material and fabrics therefrom
ELK CORP22 citations92
US8017531B2Sep 13, 2011
Composite material
ELK CORP23 citations91
US7563733B2Jul 21, 2009
Composite material
ELK CORP24 citations91
US7411143B2Aug 12, 2008
Flexible EL dome sheet and flexible EL dome sheet keypad using the same
ELK CORP22 citations91
US4559267ADec 17, 1985
Stick-down system for roofing
ELK CORP50 citations90
US8030229B2Oct 4, 2011
Composite material
ELK CORP13 citations82
US8012415B2Sep 6, 2011
Sterilization method and plasma sterilization apparatus
ELK CORP3 citations57
US7482747B2Jan 27, 2009
Flexible EL device
ELK CORP1 citations50