Inventor

STONE FREDERICK A

7 patents

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

TELECO OILFIELD SERVICES INC

6 patents

US4674773AJun 23, 1987

Insulating coupling for drill collars and method of manufacture thereof

TELECO OILFIELD SERVICES INC61 citations95

US4761889AAug 9, 1988

Method for the detection and correction of magnetic interference in the surveying of boreholes

TELECO OILFIELD SERVICES INC65 citations93

US4589187AMay 20, 1986

BAKER HUGHES INC

1 patent

US5272680ADec 21, 1993

Method of decoding MWD signals using annular pressure signals

BAKER HUGHES INC23 citations88

STONE FREDERICK A

TELECO OILFIELD SERVICES INC

Insulating coupling for drill collars and method of manufacture thereof

Method for the detection and correction of magnetic interference in the surveying of boreholes

Method of manufacturing an insulating coupling for drill collars

Hydraulic circuit for borehole telemetry apparatus

Mounting and shock absorber assembly for borehole telemetry apparatus

Electrical connector for borehole telemetry apparatus

BAKER HUGHES INC

Method of decoding MWD signals using annular pressure signals