1
Gaurav Agrawal, Zhiyue Xu: Dissolvable tool and method. Baker Hughes Incorporated, Cantor Colburn, March 26, 2013: US08403037 (52 worldwide citation)

A method of dissolving a tool includes exposing an outer surface of the tool to an environment reactive with the tool, reacting the tool with the environment, and applying stress to the tool. The method also includes concentrating stress on the tool at stress risers in the outer surface, and initiat ...


2
Gaurav Agrawal, Zhiyue Xu: Multi-component disappearing tripping ball and method for making the same. Baker Hughes Incorporated, Cantor Colburn, December 11, 2012: US08327931 (48 worldwide citation)

A tripping ball including two or more dissolution resistant parts of a ball and an adherent dissolvable material binding the two or more parts of the ball together. A method for making a tripping ball is also included.


3
Zhiyue Xu, Soma Chakraborty, Gaurav Agrawal: Nanomatrix metal composite. Baker Hughes Incorporated, Cantor Colburn, April 23, 2013: US08425651 (40 worldwide citation)

A powder metal composite is disclosed. The powder metal composite includes a substantially-continuous, cellular nanomatrix comprising a nanomatrix material. The composite also includes a plurality of dispersed first particles each comprising a first particle core material that comprises Mg, Al, Zn o ...


4
Gaurav Agrawal, Zhiyue Xu, Bennett Richard, Yang Xu: Telescopic unit with dissolvable barrier. Baker Hughes Incorporated, Cantor Colburn, October 30, 2012: US08297364 (40 worldwide citation)

A telescopic member includes, at least a central component and a barrier disposed within the central component, the barrier has a selectively tailorable dissolution rate curve and has structural properties enabling the containment of high pressure prior to structural failure of the barrier through d ...


5
Zhiyue Xu, Gaurav Agrawal, Bobby Salinas: Method of making a nanomatrix powder metal compact. Baker Hughes Incorporated, Cantor Colburn, July 14, 2015: US09079246 (15 worldwide citation)

A method of making a powder metal compact is disclosed. The method includes forming a coated metallic powder comprising a plurality of coated metallic powder particles having particle cores with nanoscale metallic coating layers disposed thereon, wherein the metallic coating layers have a chemical c ...


6
Anthony A DiGiovanni, Danny E Scott, Soma Chakraborty, Gaurav Agrawal: Cutting elements including nanoparticles in at least one portion thereof, earth-boring tools including such cutting elements, and related methods. Baker Hughes Incorporated, TraskBritt, March 24, 2015: US08985248 (13 worldwide citation)

Cutting elements comprise a multi-portion polycrystalline material. At least one portion of the multi-portion polycrystalline material comprises a higher volume of nanoparticles than at least another portion. Earth-boring tools comprise a body and at least one cutting element attached to the body. T ...


7
Gaurav Agrawal, Zhiyue Xu: Dissolvable tool and method. Baker Hughes Incorporated, Cantor Colburn, September 10, 2013: US08528633 (11 worldwide citation)

A method of dissolving a tool includes positioning the tool within an environment reactive with at least a portion of the tool, and introducing the environment below a surface of the tool through at least one perforation formed therein. The method also includes reacting at least a portion of the too ...


8
Gaurav Agrawal: Facer and faced polymeric roofing board. Johns Manville, Robert D Touslee, July 6, 2010: US07749598 (10 worldwide citation)

A prefabricated, faced roofing board composite includes a first board layer made of a polymeric material or a predominantly polymeric material and a fire and weather resistant fiberglass-based facer bonded to a top major surface of the first board layer and forming a top major surface of the composi ...


9
Zhiyue Xu, Soma Chakraborty, Gaurav Agrawal: Nanomatrix powder metal composite. Baker Hughes Incorporated, Cantor Colburn, July 28, 2015: US09090955 (8 worldwide citation)

A powder metal composite is disclosed. The powder metal composite includes a substantially-continuous, cellular nanomatrix comprising a nanomatrix material. The compact also includes a plurality of dispersed particles comprising a particle core material that comprises Mg, Al, Zn or Mn, or a combinat ...


10
Gaurav Agrawal: Facer and faced polymeric roofing board. Johns Manville, Robert D Touslee, August 31, 2010: US07785703 (7 worldwide citation)

A prefabricated, faced roofing board composite includes a first board layer made of a polymeric material or a predominantly polymeric material and a fire and weather resistant fiberglass-based facer bonded to a top major surface of the first board layer and forming a top major surface of the composi ...