Assignee
DIGITAL CONTROL INC
US·43 granted patents·2,715 citations·filing 1994–2002
Top patents by PatentIndex Score
43 records- 0199US6223826B1Auto-extending/retracting electrically isolated conductors in a segmented drill stringDIGITAL CONTROL INC·Filed 1999·Granted May 1, 2001·224 cites·70 claims
- 0298US6496008B1Flux plane locating in an underground drilling systemDIGITAL CONTROL INC·Filed 2000·Granted Dec 17, 2002·199 cites·16 claims
- 0398US6417666B1Boring tool tracking system and method using magnetic locating signal and wire-in-pipe dataDIGITAL CONTROL INC·Filed 2000·Granted Jul 9, 2002·109 cites·30 claims
- 0498US6035951ASystem for tracking and/or guiding an underground boring toolDIGITAL CONTROL INC·Filed 1997·Granted Mar 14, 2000·237 cites·29 claims
- 0596US6005532AOrthogonal antenna arrangement and methodDIGITAL CONTROL INC·Filed 1997·Granted Dec 21, 1999·148 cites·33 claims
- 0695US5767678APosition and orientation locator/monitorDIGITAL CONTROL INC·Filed 1996·Granted Jun 16, 1998·123 cites·32 claims
- 0794US6079506ABoring tool control using remote locatorDIGITAL CONTROL INC·Filed 1998·Granted Jun 27, 2000·113 cites·39 claims
- 0894US5698981ATechnique for establishing at least a portion of an underground path of a boring toolDIGITAL CONTROL INC·Filed 1996·Granted Dec 16, 1997·144 cites·19 claims
- 0992US6285190B1Skin depth compensation in underground boring applicationsDIGITAL CONTROL INC·Filed 1999·Granted Sep 4, 2001·137 cites·44 claims
- 1092US6250402B1Establishing positions of locating field detectors and path mappings in underground boring tool applicationsDIGITAL CONTROL INC·Filed 1999·Granted Jun 26, 2001·95 cites·10 claims
- 1192US6232780B1Underground locating using a locating signal transmitter configured with a single antennaDIGITAL CONTROL INC·Filed 2000·Granted May 15, 2001·67 cites·2 claims
- 1292US5444382APosition and orientation locator/monitorDIGITAL CONTROL INC·Filed 1994·Granted Aug 22, 1995·70 cites·6 claims
- 1389US6160401ABoring technique using locate point measurements for boring tool depth predictionDIGITAL CONTROL INC·Filed 1999·Granted Dec 12, 2000·71 cites·13 claims
- 1487US5764062ATechnique for establishing and recording a boring tool path using a survey reference levelDIGITAL CONTROL INC·Filed 1996·Granted Jun 9, 1998·122 cites·21 claims
- 1585US6446728B2Auto-extending/retracting electrically isolated conductors in a segmented drill stringDIGITAL CONTROL INC·Filed 2001·Granted Sep 10, 2002·65 cites·15 claims
- 1684US6047783ASystems, arrangements and associated methods for tracking and/or guiding an underground boring toolDIGITAL CONTROL INC·Filed 1999·Granted Apr 11, 2000·58 cites·20 claims
- 1783US6191585B1Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signalDIGITAL CONTROL INC·Filed 1999·Granted Feb 20, 2001·55 cites·18 claims
- 1883US6014026ABoring technique for using locate point measurements for boring tool depth predictionDIGITAL CONTROL INC·Filed 1998·Granted Jan 11, 2000·53 cites·10 claims
- 1981US6095260ASystem, arrangements and associated methods for tracking and/or guiding an underground boring toolDIGITAL CONTROL INC·Filed 1999·Granted Aug 1, 2000·51 cites·9 claims
- 2080US6057687ATwo mode boring tool guiding system and methodDIGITAL CONTROL INC·Filed 1998·Granted May 2, 2000·42 cites·10 claims
- 2179US5990683AMethod and arrangement for locating a boring tool using a three-antennae vector sumDIGITAL CONTROL INC·Filed 1998·Granted Nov 23, 1999·39 cites·6 claims
- 2277US5933008ABoring technique using locate point measurements for boring tool depth determinationDIGITAL CONTROL INC·Filed 1997·Granted Aug 3, 1999·72 cites·4 claims
- 2374US5926025AMethod of finding an above-ground point in relation to an in-ground boring toolDIGITAL CONTROL INC·Filed 1998·Granted Jul 20, 1999·32 cites·7 claims
- 2473US5961252AUnderground utility installation tension monitoring arrangement and methodDIGITAL CONTROL INC·Filed 1997·Granted Oct 5, 1999·63 cites·12 claims
- 2572US5990682AMethod for determining the depth of an in-ground boring toolDIGITAL CONTROL INC·Filed 1998·Granted Nov 23, 1999·29 cites·2 claims
- 2671US6536538B2Establishing positions of locating field detectors and path mapping in underground boring tool applicationsDIGITAL CONTROL INC·Filed 2001·Granted Mar 25, 2003·20 cites·7 claims
- 2771US6525538B1Position and orientation locator/monitorDIGITAL CONTROL INC·Filed 2000·Granted Feb 25, 2003·17 cites·12 claims
- 2870US6454023B1Mapping tool for tracking and/or guiding an underground boring toolDIGITAL CONTROL INC·Filed 2000·Granted Sep 24, 2002·18 cites·10 claims
- 2969US6364035B2Establishing positions of locating field detectors and path mapping in underground boring tool applicationsDIGITAL CONTROL INC·Filed 2001·Granted Apr 2, 2002·17 cites·24 claims
- 3067US6457537B1Mapping tool for tracking and/or guiding an underground boring toolDIGITAL CONTROL INC·Filed 2001·Granted Oct 1, 2002·16 cites·32 claims
- 3167US6008651AOrientation sensor arrangement and method for use in a system for monitoring the orientation of an underground boring toolDIGITAL CONTROL INC·Filed 1998·Granted Dec 28, 1999·49 cites·8 claims
- 3262US6400159B1Orientation sensor especially suitable for use in an underground boring deviceDIGITAL CONTROL INC·Filed 2000·Granted Jun 4, 2002·9 cites·11 claims
- 3362US6002258AMethod for locating a boring toolDIGITAL CONTROL INC·Filed 1998·Granted Dec 14, 1999·37 cites·14 claims
- 3461US6617854B2Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signalDIGITAL CONTROL INC·Filed 2000·Granted Sep 9, 2003·12 cites·14 claims
- 3559US5914602ASystem including an arrangement for tracking the positional relationship between a boring tool and one or more buried lines and methodDIGITAL CONTROL INC·Filed 1998·Granted Jun 22, 1999·33 cites·33 claims
- 3656US6559646B2Boring tool locating using sensing at spaced apart reference path locationsDIGITAL CONTROL INC·Filed 2002·Granted May 6, 2003·8 cites·20 claims
- 3753US6396275B1Arrangement using measured pitch and locating field measurements to determine a positional relationshipDIGITAL CONTROL INC·Filed 2000·Granted May 28, 2002·7 cites·14 claims
- 3853US5878824ABoring tool or other device including thermal protection for an electronic component assembly and methodDIGITAL CONTROL INC·Filed 1996·Granted Mar 9, 1999·31 cites·38 claims
- 3949US5726359AOrientation sensor especially suitable for use in an underground boring deviceDIGITAL CONTROL INC·Filed 1995·Granted Mar 10, 1998·11 cites·18 claims
- 4045US6618951B2Orientation sensor utilizing intra-pattern property measurementsDIGITAL CONTROL INC·Filed 2002·Granted Sep 16, 2003·2 cites·14 claims
- 4139US6530155B2Orientation sensor utilizing intra-pattern property measurementsDIGITAL CONTROL INC·Filed 2001·Granted Mar 11, 2003·0 cites·42 claims
- 4238US6066955AOrientation sensor especially suitable for use in an underground boring deviceDIGITAL CONTROL INC·Filed 1997·Granted May 23, 2000·5 cites·18 claims
- 4336US6351892B1Orientation sensor utilizing intra-pattern property measurementsDIGITAL CONTROL INC·Filed 1999·Granted Mar 5, 2002·5 cites·42 claims
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