`The Patent Linguistics Utility System (PLUS) is a USPTO automated search system
`for US. Patents from 1971 to the present PLUS is a query-by-example search system which
`produces a list of patents that are most closely related linguistically to the application
`searched. This search was prepared by the staff of the Scientific and Technical Information
`Center, SIRA.
`
`15985540
`
`20100168117 64
`
`20030152983 75
`20120329819 75
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`20070155811 70
`20090007281 70
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`7585999 64
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`20030124617 64
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`20090307131 64
`20100047204 64
`
`