DON QUOC NGUYEN, RPH
Pharmacy at Fm 529 Rd, Houston, TX

2012011, May 10, 2012

Nov 4, 2010

12/939367

Don Q. NGUYEN - Houston TX, US
Anton F. ZAHRADNIK - Sugar Land TX, US
Rudolf C. PESSIER - Houston TX, US
Mark P. BLACKMAN - Conroe TX, US
Robert D. BRADSHAW - The Woodlands TX, US
Scott A. YOUNG - Montgomery TX, US
Ronny D. MCCORMICK - Magnolia TX, US
Shyam ANANDAMPILLAI - Houston TX, US
Michael S. DAMSCHEN - Houston TX, US
Robert J. BUSKE - The Woodlands TX, US

BAKER HUGHES INCORPORATED - Houston TX

E21B 10/00, B21K 5/04

175336, 761082

An earth boring drill bit designed for a specific performance, within a finished product tolerance, using components built to a looser manufacturing tolerance. The bit may be assembled by selecting a leg from a plurality of pre-manufactured legs; selecting a bit body from a plurality of pre-manufactured bit bodies, the bit body having a slot for receiving the leg; placing the leg within the slot; and fixing the leg within the slot within the finished product tolerance by placing one or more shims between the leg and the slot. The shims may be used to adjust an axial position, a radial position, and/or a circumferential position of the leg with respect to the slot. The leg and the bit body may be selected, or produced, to ensure the bit will not meet the specification, given the manufacturing tolerance, without the shims.

2010015, Jun 24, 2010

Jun 9, 2009

12/481410

Don Q. Nguyen - Houston TX, US
Anton F. Zahradnik - Sugar Land TX, US
Rudolf C. Pessier - Galveston TX, US

BAKER HUGHES INCORPORATED - Houston TX

E21B 10/14, E21B 10/00

175336

The invention disclosed and taught herein is directed to an improved hybrid drill bit and associated elements having at least two rolling cutters, each rotatable around separate spindles on the bit, and at least one fixed blade. The improved drill bit expands the pilot pin to journal diameter ratio within the body of the rolling cutter, but within the confines of the allowable space of the rolling cutter.

7066280, Jun 27, 2006

Apr 1, 2003

10/405576

Eric Charles Sullivan - Houston TX, US
Scott Ray Schmidt - The Woodlands TX, US
Don Quy Nguyen - Houston TX, US
Glenn R. Zadrapa - Highlands TX, US
Timothy K. Marvel - The Woodlands TX, US
Daniel E. Ruff - Kingwood TX, US

Baker Hughes Incorporated - TX

E21B 10/22

175 40, 73 5305

An improved drill bit for use in drilling operations in a wellbore comprising a bit body including a plurality of bit legs, each supporting a rolling cone cutter, a lubrication system for a rolling cone cutter, at least one lubrication sensor for monitoring at least one condition of said lubricant during drilling operations, and an electronics member in the bit body for recording data obtained form said lubrication sensor.

8028770, Oct 4, 2011

Nov 17, 2010

12/947934

Aaron J. Dick - Houston TX, US
Chih Lin - Spring TX, US
Terry J. Koltermann - The Woodlands TX, US
Anton F. Zahradnik - Sugarland TX, US
Daniel E. Scott - Montgomery TX, US
Don Q. Nguyen - Houston TX, US
Eric Sullivan - Houston TX, US
Scott Shiqiang Shu - Spring TX, US
Craig Hodges Cooley - Saratoga Springs UT, US
Timothy Nathan Sexton - Santaquin UT, US

Baker Hughes Incorporated - Houston TX

E21B 47/01

175372

A rock drilling bit having PDC radial bearings has journal and cone bearing surfaces with increased contact area to increase load support. The radius of curvature of the bearing pin journal and cone bearing surfaces are matched or conformed on the bearing pressure side. The conformal journal surfaces may be formed on the main journal bearing, the pilot pin radial bearing, or both surfaces. In addition, diamond inlays may be located on the bearing surfaces of the cone, the bearing pin, or both components.

7413037, Aug 19, 2008

Sep 15, 2005

11/226948

Chih Lin - Spring TX, US
Don Quy Nguyen - Houston TX, US
Gregory L. Ricks - Spring TX, US
Terry J. Koltermann - The Woodlands TX, US

Baker Hughes Incorporated - Houston TX

E21B 10/22, E21B 10/25, F16J 15/22

175371, 175372, 277379, 277380, 277396

A metal face seal for an earth boring drill bit where the drill bit has a bit body, at least one bit leg, a bearing pin on each bit leg, and a cone rotatably mounted on each bearing pin. The metal face seal is located in the cavity formed between the interior surface of the cone and the bearing pin. The metal face seal consists of a rigid seal ring having a forward surface that engages a rotating seal surface of the cone. An energizer ring biases the rigid seal ring toward the rotating seal surface. A secondary seal engages the bearing pin surface, the energizer ring, and the rigid seal ring. The secondary seal ring has a protuberance on its forward side for filling void spaces between the energizer ring, the rigid seal ring, and the secondary seal ring.

7628230, Dec 8, 2009

Jul 28, 2005

11/191379

Rudolf C. Pessier - The Woodlands TX, US
James L. Overstreet - Tomball TX, US
Robert J. Buske - The Woodlands TX, US
Don Q. Nguyen - Houston TX, US

Baker Hughes Incorporated - Houston TX

E21B 10/16

175341

An earth boring bit has three cones, each cone being mounted for rotation about a cone axis while the bit rotates about a bit axis. An outer row and an adjacent row of cutting elements are integrally formed on each of the cones. Each of the cutting elements of the adjacent row on each of the cones has a crest extending perpendicular to a direction of rotation of the cone. Annular spaces are located between the outer row and the adjacent row on each of the cones. The annular space on one cone has a width that is less than the annular spaces on the other cones. The width of the narrowest annular space is greater than the width of the crests of the adjacent row.

8459378, Jun 11, 2013

May 13, 2009

12/465377

Anton F. Zahradnik - Sugar Land TX, US
Ron D. McCormick - Magnolia TX, US
Rudolf C. Pessier - The Woodlands TX, US
Jack T. Oldham - Conroe TX, US
Michael S. Damschen - Houston TX, US
Don Q. Nguyen - Houston TX, US
Matt Meiners - Conroe TX, US
Karlos B. Cepeda - Fort Worth TX, US
Mark P. Blackman - Conroe TX, US

Baker Hughes Incorporated - Houston TX

E21B 10/00

175336

A bit body is configured at its upper extent for connection into a drillstring. At least one fixed blade extends downwardly from the bit body, and has a radially outermost gage surface. A plurality of fixed cutting elements is secured to the fixed blade, preferably in a row at its rotationally leading edge. At least one bit leg is secured to the bit body and a rolling cutter is mounted for rotation on the bit leg. At least one stabilizer pad is disposed between the bit leg and the fixed blade, the stabilizer pad extending radially outward to substantially the gage surface. The radially outermost gage surface of each blade can extend axially downward parallel to the bit axis or angled (non-parallel), spirally or helically, relative to the bit axis.