Tracking system secures a patent

Tracking system secures a patent
Tracking system secures a patent The Salt Lake Tribune Published May 3, 2011 02:06PM MDT Data and/or PowerSwivel, patent No. 7,934,570, invented by David R. Hall and Jonathan Marshall of Provo and Scott Dahlgren of Alpine, assigned to Schlumberger Technology Corp. of Houston. Remote tracking system with a dedicated monitoring center, patent No. 7,936,262, invented by David Derrick and Bruce …