Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Tandem seal system for testing pipelines

Tandem seal system for testing pipelines

US Patent 5029614 · Granted Jul 9, 1991

Estimated economic value: $48,573,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Apparatus and method for measuring potentials through pavements for buried pipel1998
Inspecting a conductive object with a steady state magnetic field and induced ed1997
Apparatus and method for measuring potentials through pavements for buried pipel1997
Method of detecting cracks by measuring eddy current decay rate1995
Transient electromagnetic method and apparatus for inspecting conductive objects1993
Centrifugal separator systems for multi-phase fluids1993
Hydraulically-actuated downhole seismic source1992
Girth weld detection system for pipeline survey pig1992
Girth weld detection system for pipeline survey pig1992
Downhole seismic array system1992
Piezoelectric transducer with displacement amplifier1991
Magnetostrictive transducer for logging tool1991