Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Dynamic metal-to-metal seal

Dynamic metal-to-metal seal

US Patent 5375812 · Granted Dec 27, 1994

Estimated economic value: $176,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Tubing annulus plug valve2008
Ball valve seat and support2003
Shearing gate valve2002
Adjustable mandrel hanger system1997
Adjustable mandrel hanger for a jackup drilling rig1997
Gate valve1994
Preselected casing tensioning system1994
Positive lockdown for metal seal1994
Emergency casing hanger1990
Piezoelectric transducer and components therefor1988