Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and apparatus for downhole sand clean-out operations in the petroleum industry

Method and apparatus for downhole sand clean-out operations in the petroleum industry

US Patent 5447200 · Granted Sep 5, 1995

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Stage tool2023
Scale with an extendable length measuring instrument2021
Sliding sleeve having inverting ball seat2017
Sliding sleeve having contracting, dual segmented ball seat2017
Device for picking up animal waste2017
Portable waste remover with integrated bag2009
Apparatus for patient mobility2008
Modular liner hanger2006
Automatic tubing filler2006
Apparatus for holding a media storage disk2006
Two-stage downhole packer2003
Port collar assembly for use in a wellbore2003