Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Well pipe hanger with metal sealing annulus valve

Well pipe hanger with metal sealing annulus valve

US Patent 5044432 · Granted Sep 3, 1991

Estimated economic value: $2,966,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Submersible well fluid system2025
Hat hanger2025
Hanger2025
Submersible well fluid system2022
Hat hanger2022
Up-thrusting fluid system2020
Subsea multiphase pump or compressor with magnetic coupling and cooling or lubri2019
Submersible well fluid system2019
Coupling an electric machine and fluid-end2018
Subsea compressor or pump with hermetically sealed electric motor and with magne2018
In-line flow mixer2017
Flushing system2014