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 of Provo, Scott Dahlgren of Alpine, and Jonathan Marshall of Provo, assigned to Schlumberger Technology Corp. of Houston, Texas. Remote tracking system with a dedicated monitoring center, patent No. 7,936,262, invented by David Derrick …