1
J Ford Brett, Tommy M Warren, L Allen Sinor, Suzanne M Behr: Low friction subterranean drill bit and related methods. Scott H Brown, Fred E Hook, July 21, 1992: US05131478 (111 worldwide citation)

A subterranean drill bit operable with a rotational drive source is provided for drilling in subterranean earthen materials to create a borehole having a borehole wall. The drill bit comprises a drill bit body having a base portion, a gauge portion and a face portion disposed about a bit axis. A plu ...


2
Tommy M Warren, Suzanne M Behr: Low pressure drill bit. Amoco Corporation, Scott H Brown, Fred E Hook, December 19, 1989: US04887677 (17 worldwide citation)

A drill bit includes a drill bit body, a cutting member and a fluid course extending in front of the cutting member. The fluid course includes a progressively widening diffuser having a particular design which allows pressure recovery in a fluid flowed through an axial bore of the drill bit body, th ...


3
Goutham R Kirikera, William M Patton, Suzanne M Behr, Tracy Sawyer, Anthony Thornberry: Downhole quartz gauge with minimal electronics. Sercel GRC Corporation, GableGotwals, November 29, 2016: US09506340

A system and method of monitoring a pressure, temperature, and/or vibration of a hostile environment without requiring the use of active electronics or an oscillator circuit in that environment. The system and method interrogate a resonant pressure sensor and a resonant or passive temperature sensor ...