Inventor

MERCER JOHN E

US271 patents

⚠️ This page may combine multiple inventors who share the name “MERCER JOHN E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MERCER JOHN E

DIGITAL CONTROL INC

Flux plane locating in an underground drilling system

Boring tool tracking system and method using magnetic locating signal and wire-in-pipe data

Establishing positions of locating field detectors and path mappings in underground boring tool applications

Auto-extending/retracting electrically isolated conductors in a segmented drill string

Boring tool control using remote locator

System for tracking and/or guiding an underground boring tool

Position and orientation locator/monitor

Skin depth compensation in underground boring applications

Technique for establishing and recording a boring tool path using a survey reference level

Technique for establishing at least a portion of an underground path of a boring tool

Underground locating using a locating signal transmitter configured with a single antenna

Boring technique using locate point measurements for boring tool depth prediction

Position and orientation locator/monitor

Auto-extending/retracting electrically isolated conductors in a segmented drill string

Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal

System, arrangements and associated methods for tracking and/or guiding an underground boring tool

Two mode boring tool guiding system and method

Systems, arrangements and associated methods for tracking and/or guiding an underground boring tool

Boring technique for using locate point measurements for boring tool depth prediction

Method for determining the depth of an in-ground boring tool

Method and arrangement for locating a boring tool using a three-antennae vector sum

Underground utility installation tension monitoring arrangement and method

Boring technique using locate point measurements for boring tool depth determination

Method of finding an above-ground point in relation to an in-ground boring tool

MERLIN TECHNOLOGY INC

Boring tool tracking fundamentally based on drill string length, pitch and roll

Multi-frequency boring tool locating system and method

Locating arrangement and method using boring tool and cable locating signals

Auto-extending/retracting electrically isolated conductors in a segmented drill string

Tracking positions of personnel, vehicles, and inanimate objects

Locating technique and apparatus using an approximated dipole signal

Tracking positions of personnel, vehicles, and inanimate objects

Boring tool tracking fundamentally based on drill string length, pitch and roll

Flux plane locating in an underground drilling system

Path mapping in underground boring tool applications

Advanced underground homing system, apparatus and method

Drive mechanism and method

(unassigned)

Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and method

Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and method

Device and method for locating an inground object and a housing forming part of said device

FLOWMOLE CORP

Homing technique for an in-ground boring device

Technique for steering and monitoring the orientation of a powered underground boring device

Technique for steering a downhole hammer

MERCER JOHN E

Locator device for continuously locating a dipole magnetic field transmitter and its method of operation

Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and method

MARLIN TECHNOLOGY INC

Boring tool tracking/guiding system and method with unconstrained target location geometry

Distinguishing false signals in cable locating

DIGITAL CONTROL CORP

Boring tool control using remote locator including a command generation arrangement and method

System including an arrangement for tracking the positional relationship between a boring tool and one or more buried lines and method

FLOW IND INC

An above-ground arrangement for and method of locating a discrete in ground boring device

MARTIN TECHNOLOGY INC

Advanced steering tool system, method and apparatus