Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Blowout preventer inner ram seal assembly

Blowout preventer inner ram seal assembly

US Patent 4398729 · Granted Aug 16, 1983

Estimated economic value: $12,059,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Snow grooming apparatus and system2003
Deflation resistant tire and insert apparatus1998
Well jar accelerator with expansion chamber1996
Key cover1993
Key cover1992
Releasable overshot1991
Fail-safe blowout preventer1989
Fail-safe blowout preventer1989
Lock-down releasing spear assembly1987
Casing scraper1987
Casing scraper1987
Connector for joining blowout preventer members1985