Assignee

SPERRY RAIL SERVICE

US·1 granted patent·100 citations·filing 1998–1998

Technology mixB61K1 G01M1 G01N1

Top patents by PatentIndex Score

1 record

0183US5970438AMethod and apparatus for testing rails for structural defectsSPERRY RAIL SERVICE·Filed 1998·Granted Oct 19, 1999·100 cites·29 claims

Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →