Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Valve and stem seal therefor

Valve and stem seal therefor

US Patent 4531711 · Granted Jul 30, 1985

Estimated economic value: $1,844,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Connection for a pressurized fluid flow path2018
Source driver current fold-back protection2013
Stress distributing wellhead connector2011
Stress distributing wellhead connector2009
Real-time component monitoring and replenishment system for multicomponent fluid2007
Real-time component monitoring and replenishment system for multicomponent fluid2006
Composite pipe assembly and method for preparing the same2002
Gate valve with improved secondary body to bushing seals1988
Gate valve1986
Gate valve1986
Valve and stem seal therefor1984