RPX’s CEO released a statement on our response to the COVID-19 emergency. Click here to access.

RPX’s CEO released a statement on our response to the COVID-19 emergency. Click here to access.

Instant message user location tracking system

  • US 6,668,173 B2
  • Filed: 12/15/2000
  • Issued: 12/23/2003
  • Est. Priority Date: 12/15/2000
  • Status: Active Grant
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