Assignee
VECTOR MAGNETICS INC
US·16 granted patents·3,121 citations·filing 1986–2004
Top patents by PatentIndex Score
16 records- 0199US5589775ARotating magnet for distance and direction measurements from a first borehole to a second boreholeVECTOR MAGNETICS INC·Filed 1995·Granted Dec 31, 1996·449 cites·32 claims
- 0299US5485089AMethod and apparatus for measuring distance and direction by movable magnetic field sourceVECTOR MAGNETICS INC·Filed 1993·Granted Jan 16, 1996·355 cites·33 claims
- 0398US5923170AMethod for near field electromagnetic proximity determination for guidance of a borehole drillVECTOR MAGNETICS INC·Filed 1998·Granted Jul 13, 1999·335 cites·21 claims
- 0498US4700142AMethod for determining the location of a deep-well casing by magnetic field sensingVECTOR MAGNETICS INC·Filed 1986·Granted Oct 13, 1987·239 cites·10 claims
- 0596US5676212ADownhole electrode for well guidance systemVECTOR MAGNETICS INC·Filed 1996·Granted Oct 14, 1997·237 cites·17 claims
- 0696US5305212AAlternating and static magnetic field gradient measurements for distance and direction determinationVECTOR MAGNETICS INC·Filed 1992·Granted Apr 19, 1994·138 cites·16 claims
- 0796US5074365ABorehole guidance system having target wirelineVECTOR MAGNETICS INC·Filed 1990·Granted Dec 24, 1991·204 cites·16 claims
- 0895US5512830AMeasurement of vector components of static field perturbations for borehole locationVECTOR MAGNETICS INC·Filed 1993·Granted Apr 30, 1996·187 cites·15 claims
- 0994US5258755ATwo-source magnetic field guidance systemVECTOR MAGNETICS INC·Filed 1992·Granted Nov 2, 1993·180 cites·18 claims
- 1093US5657826AGuidance system for drilling boreholesVECTOR MAGNETICS INC·Filed 1995·Granted Aug 19, 1997·151 cites·9 claims
- 1192US5513710ASolenoid guide system for horizontal boreholesVECTOR MAGNETICS INC·Filed 1994·Granted May 7, 1996·149 cites·6 claims
- 1290US5515931ASingle-wire guidance system for drilling boreholesVECTOR MAGNETICS INC·Filed 1994·Granted May 14, 1996·109 cites·14 claims
- 1387US6939186B1Rolling heel, forward facing rowing systemVECTOR MAGNETICS INC·Filed 2004·Granted Sep 6, 2005·28 cites·32 claims
- 1486US6234259B1Multiple cam directional controller for steerable rotary drillVECTOR MAGNETICS INC·Filed 1999·Granted May 22, 2001·126 cites·28 claims
- 1586USRE36569EMethod and apparatus for measuring distance and direction by movable magnetic field sourceVECTOR MAGNETICS INC·Filed 1996·Granted Feb 15, 2000·97 cites·34 claims
- 1682US5725059AMethod and apparatus for producing parallel boreholesVECTOR MAGNETICS INC·Filed 1995·Granted Mar 10, 1998·137 cites·33 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →