Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Methods and apparatus for creating a downhole buoyant casing chamber

Methods and apparatus for creating a downhole buoyant casing chamber

US Patent 6651748 · Granted Nov 25, 2003

Estimated economic value: $18,148,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Multiple stage cementing tool and method of use2025
Plug container, method and apparatus2025
Hose lift and connection assembly and method of use with a top drive cement head2025
Shoe track assembly system and method of use2024
Integral swivel for multiple stage cementing tools apparatus and method of use2024
Fluid diverter system with chamber valves and method of use2024
Autofill conversion assembly with an interchangeable flow port ball cage and met2024
Plug container, method and apparatus2023
Method and system for fabrication of a metal cup for creating an annular seal wi2022
Shoe track assembly system and method of use2022
Stage packer shoe with a metal cup system and method of use2021
Apparatus and method for creating a plug in a wellbore2021