Inventor

CHAU ALBERT W

US177 patents

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

CHAU ALBERT W

MERLIN TECHNOLOGY INC

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

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

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

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

Flux plane locating in an underground drilling system

Advanced drill string communication system, components and methods

Advanced underground homing system, apparatus and method

Flux plane locating in an underground drilling system

Tracking positions of personnel, vehicles, and inanimate objects

Tracking positions of personnel, vehicles, and inanimate objects

Flux plane locating in an underground drilling system

Tracking positions of personnel, vehicles, and inanimate objects

Locating technique and apparatus using an approximated dipole signal

Flux plane locating in an underground drilling system

Locating technique and apparatus using an approximated dipole signal

Locating technique and apparatus using an approximated dipole signal

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

Dipole field locate point determination using a horizontal flux vector

Tension monitoring arrangement and method

Tension monitoring arrangement and method

Tension monitoring arrangement and method

Tension monitoring arrangement and method

FLOWMOLE CORP

Homing technique for an in-ground boring device

Device for locating a boring machine

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

Technique for steering a downhole hammer

Inground boring technique including real time transducer

Technique for providing an underground tunnel utilizing a powered boring device

Technique for providing an underground tunnel utilizing a powered boring device

Technique for providing an underground tunnel utilizing a powered boring device

DIGITAL CONTROL INC

Flux plane locating in an underground drilling system

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

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

CHAU ALBERT W

Drill string adapter and method for inground signal coupling

Drill string inground isolator in an MWD system and associated method

Sonde with integral pressure sensor and method

UTILX CORP

Electronic guidance system and method for locating a discrete in-ground boring device

Cable connector with fluid injection port

MARLIN TECHNOLOGY INC

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

Distinguishing false signals in cable locating

FLOW IND INC

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

LAM LOC VIET

Measurement device and associated method for use in frequency selection for inground transmission

MARTIN TECHNOLOGY INC

Advanced steering tool system, method and apparatus

BRUNE GUENTER W

Flux plane locating in an underground drilling system

ZELLER RUDOLF

Tracking positions of personnel, vehicles, and inanimate objects