Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Rod locking device

Rod locking device

US Patent 4969390 · Granted Nov 13, 1990

Estimated economic value: $7,093,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Annular blowout preventer2021
Ram for a blowout preventer and a blowout preventer provided with rams2019
Bidirectional sealing blowout preventer2004
Variable bore packer for a ram type blowout preventer1991
Annular blowout preventer1986
Ram-type blowout preventer with improved ram front packer1985
Annular blowout preventer1985
Ram-type blowout preventer1985
Annular blowout preventer1984
Annular blowout preventer1984
Annular blowout preventer1984
Annular blowout preventer1982