Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Elliptical sealing surface for butterfly valve

Elliptical sealing surface for butterfly valve

US Patent 7416164 · Granted Aug 26, 2008

Estimated economic value: $127,494,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Movable valve apparatus having conditioned lubricating surfaces2016
Methods and apparatus to load a valve packing2015
Seal ring assemblies for use with rotary valves2014
Movable valve apparatus having conditioned lubricating surfaces2014
Methods and apparatus to load a valve packing2013
Portable well fluid extraction apparatus2008
Elliptical sealing surface for butterfly valve2007
Elliptical sealing surface for butterfly valve2007
Elliptical sealing surface for butterfly valve2007
Rotary valve apparatus and associated methods2007
Elliptical sealing surface for butterfly valve2006
Elliptical sealing surface for butterfly valve2006