FIELD EFFECTS CALIBRATION, LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 195
 
  
 
G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT 156

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7114580 Method and apparatus for determining a trajectory of a directional drillFeb 21, 03Oct 03, 06[E21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7543497 Electrodynamic accelerometerExpiredSep 08, 06Jun 09, 09[G01P]
5197041 Piezoelectric mud pulser for measurement-while-drilling applicationsExpiredJan 23, 91Mar 23, 93[H04R]
5171943 Tubewave damper probe for seismic applicationsExpiredJan 23, 91Dec 15, 92[G01V]

Top Inventors for This Owner

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