Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Apparatus for indicating the passage of a pig moving within an underground pipeline

Apparatus for indicating the passage of a pig moving within an underground pipeline

US Patent 5417112 · Granted May 23, 1995

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Apparatus for detecting magnetic flux leakage and methods of making and using sa2017
Electromagnetic acoustic transducer (EMAT) system and method for eliminating noi2000
Method of manufacturing a spherical pigging device1996
Apparatus for remotely indicating pipeline pig including a sensor housing having1996
Magnetic sphere for use in a pipeline1995
Cable strain relief device1993
Pipeline caliper pig1992
Pipeline caliper pig1990
Apparatus and method for monitoring motion of a railroad train1985
Pumping apparatus1985