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

Method and apparatus for locating an object using reduced number of GPS satellite signals or with improved accuracy

  • US 5,977,909 A
  • Filed: 03/13/1998
  • Issued: 11/02/1999
  • Est. Priority Date: 03/13/1998
  • Status: Expired due to Term
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