Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Latch for use in a well

Latch for use in a well

US Patent 4438811 · Granted Mar 27, 1984

Estimated economic value: $9,124,000 ⓘ

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Pipeline with context transfer2025
Universal washdown system for gravel packing and fracturing2002
Shifting tool for a subterranean completion structure1997
One trip backwash/sand control system with extendable washpipe isolation1995
Releasable running tool for setting well tool1995
Isolation washpipe for earth well completions and method for use in gravel packi1994
Through-tubing recirculating tool assembly for well completions1994
Well packer1987
Anchor for use in a well1984
Method of using a valve in gravel packing1983
Valve1983
Valve1983