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Patents Grants
last 30 patents
Information
Patent Grant
Rotary tool with thermally stable diamond
Patent number
11,952,896
Issue date
Apr 9, 2024
Schlumberger Technology Corporation
Yahua Bao
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Cutting elements with modified diamond surface
Patent number
11,840,891
Issue date
Dec 12, 2023
Schlumberger Technology Corporation
John Daniel Belnap
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of making carbonate PCD and sintering carbonate PCD on carbi...
Patent number
11,731,092
Issue date
Aug 22, 2023
Schlumberger Technology Corporation
Yahua Bao
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Mechanical locking of cutting element with carbide matrix
Patent number
11,492,852
Issue date
Nov 8, 2022
Schlumberger Technology Corporation
Yahua Bao
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Thermally stable polycrystalline diamond and methods of making the...
Patent number
11,306,542
Issue date
Apr 19, 2022
Schlumberger Technology Corporation
Yahua Bao
B24 - GRINDING POLISHING
Information
Patent Grant
Binderless cBN sintering with cubic press
Patent number
11,066,334
Issue date
Jul 20, 2021
Schlumberger Technology Corporation
Yahua Bao
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Direct casting of ultrahard insert in bit body
Patent number
11,021,913
Issue date
Jun 1, 2021
Schlumberger Technology Corporation
Yahua Bao
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Solid PCD with transition layers to accelerate full leaching of cat...
Patent number
11,014,157
Issue date
May 25, 2021
Schlumberger Technology Corporation
Yahua Bao
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Cutting elements formed from combinations of materials and bits inc...
Patent number
10,781,643
Issue date
Sep 22, 2020
Smith International, Inc.
Yahua Bao
E21 - EARTH DRILLING MINING
Information
Patent Grant
Carbonate PCD and methods of making the same
Patent number
10,442,057
Issue date
Oct 15, 2019
Smith International, Inc.
Yahua Bao
E21 - EARTH DRILLING MINING
Information
Patent Grant
Polycrystalline diamond sintered/rebonded on carbide substrate cont...
Patent number
10,358,705
Issue date
Jul 23, 2019
Smith International, Inc.
Yahua Bao
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Ultra-hard material cutting elements and methods of manufacturing t...
Patent number
10,350,733
Issue date
Jul 16, 2019
Smith International, Inc.
Liang Zhao
B24 - GRINDING POLISHING
Information
Patent Grant
Sintering of thick solid carbonate-based PCD for drilling application
Patent number
10,352,105
Issue date
Jul 16, 2019
Smith International, Inc.
Yahua Bao
B24 - GRINDING POLISHING
Information
Patent Grant
High content PCBN compact including W—Re binder
Patent number
10,315,387
Issue date
Jun 11, 2019
Smith International, Inc.
Yahua Bao
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method of making carbonate PCD and sintering carbonate PCD on carbi...
Patent number
10,315,175
Issue date
Jun 11, 2019
Smith International, Inc.
Yahua Bao
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Thermal insulation layer and pressure transfer medium for high-pres...
Patent number
10,239,273
Issue date
Mar 26, 2019
Smith International, Inc.
Yahua Bao
B30 - PRESSES
Information
Patent Grant
Carbonate PCD with a distribution of Si and/or Al
Patent number
10,166,655
Issue date
Jan 1, 2019
Smith International, Inc.
Yahua Bao
B24 - GRINDING POLISHING
Information
Patent Grant
Chemical leaching/thermal decomposing carbonate in carbonate PCD
Patent number
10,105,824
Issue date
Oct 23, 2018
Smith International, Inc.
Yahua Bao
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
PCD wafer without substrate for high pressure / high temperature si...
Patent number
10,046,441
Issue date
Aug 14, 2018
Smith International, Inc.
Yahua Bao
B24 - GRINDING POLISHING
Information
Patent Grant
Method of forming metal deposits on ultrahard materials
Patent number
10,000,852
Issue date
Jun 19, 2018
Smith International, Inc.
Yahua Bao
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Fabrication of ultrafine polycrystalline diamond with nano-sized gr...
Patent number
9,670,100
Issue date
Jun 6, 2017
Element Six Limited
Yahua Bao
B82 - NANO-TECHNOLOGY
Information
Patent Grant
High pressure high temperature cell
Patent number
9,586,376
Issue date
Mar 7, 2017
Smith International, Inc.
Stewart N. Middlemiss
B30 - PRESSES
Information
Patent Grant
Carbonate PCD with a distribution of Si and/or Al
Patent number
9,539,703
Issue date
Jan 10, 2017
Smith International, Inc.
Yahua Bao
B24 - GRINDING POLISHING
Information
Patent Grant
Carbonate PCD and methods of making the same
Patent number
9,539,704
Issue date
Jan 10, 2017
Smith International, Inc.
Yahua Bao
B24 - GRINDING POLISHING
Information
Patent Grant
Sintering of thick solid carbonate-based PCD for drilling application
Patent number
9,475,176
Issue date
Oct 25, 2016
Smith International, Inc.
Yahua Bao
B24 - GRINDING POLISHING
Information
Patent Grant
Method for braze joining of carbonate PCD
Patent number
9,422,770
Issue date
Aug 23, 2016
Smith International, Inc.
J. Daniel Belnap
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High content PCBN compact including W-RE binder
Patent number
9,382,602
Issue date
Jul 5, 2016
Smith International, Inc.
Yahua Bao
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Fine polycrystalline diamond compact with a grain growth inhibitor...
Patent number
9,089,951
Issue date
Jul 28, 2015
Element Six Limited
Yahua Bao
B24 - GRINDING POLISHING
Information
Patent Grant
EDM cuttable, high cBN content solid PCBN compact
Patent number
9,028,573
Issue date
May 12, 2015
Element Six Limited
Yahua Bao
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
EDM cuttable, high CBN content solid PCBN compact
Patent number
9,028,575
Issue date
May 12, 2015
Element Six Limited
Yahua Bao
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
LUMINESCENT DIAMOND
Publication number
20230257648
Publication date
Aug 17, 2023
SCHLUMBERGER TECHNOLOGY CORPORATION
Yahua Bao
C01 - INORGANIC CHEMISTRY
Information
Patent Application
ROTARY TOOL WITH THERMALLY STABLE DIAMOND
Publication number
20210388723
Publication date
Dec 16, 2021
SCHLUMBERGER TECHNOLOGY CORPORATION
Yahua Bao
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Application
CUTTING ELEMENTS WITH MODIFIED DIAMOND SURFACE
Publication number
20210172257
Publication date
Jun 10, 2021
SCHLUMBERGER TECHNOLOGY CORPORATION
John Daniel Belnap
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
METHOD OF MAKING CARBONATE PCD AND SINTERING CARBONATE PCD ON CARBI...
Publication number
20190275484
Publication date
Sep 12, 2019
Smith International, Inc.
Yahua Bao
B22 - CASTING POWDER METALLURGY
Information
Patent Application
BINDERLESS CBN SINTERING WITH CUBIC PRESS
Publication number
20190177236
Publication date
Jun 13, 2019
Smith International, Inc.
Yahua Bao
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
DIRECT CASTING OF ULTRAHARD INSERT IN BIT BODY
Publication number
20180371844
Publication date
Dec 27, 2018
Smith International, Inc.
Yahua Bao
E21 - EARTH DRILLING MINING
Information
Patent Application
CUTTING ELEMENTS FORMED FROM COMBINATIONS OF MATERIALS AND BITS INC...
Publication number
20180363383
Publication date
Dec 20, 2018
Smith International, Inc.
Yahua Bao
E21 - EARTH DRILLING MINING
Information
Patent Application
MECHANICAL LOCKING OF CUTTING ELEMENT WITH CARBIDE MATRIX
Publication number
20180363384
Publication date
Dec 20, 2018
Smith International, Inc.
Yahua Bao
E21 - EARTH DRILLING MINING
Information
Patent Application
ERUPTION MINIMIZATION IN THERMALLY STABLE PCD PRODUCTS
Publication number
20180305598
Publication date
Oct 25, 2018
Smith International, Inc.
Guojiang Fan
B24 - GRINDING POLISHING
Information
Patent Application
THERMAL INSULATION LAYER AND PRESSURE TRANSFER MEDIUM FOR HIGH-PRES...
Publication number
20180169987
Publication date
Jun 21, 2018
Smith International, Inc.
Yahua Bao
B30 - PRESSES
Information
Patent Application
POLYCRYSTALLINE DIAMOND SINTERED/REBONDED ON CARBIDE SUBSTRATE CONT...
Publication number
20180044764
Publication date
Feb 15, 2018
Smith International, Inc.
Yahua Bao
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SOLID PCD WITH TRANSITION LAYERS TO ACCELERATE FULL LEACHING OF CAT...
Publication number
20170341147
Publication date
Nov 30, 2017
Smith International, Inc.
Yahua Bao
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
CARBONATE PCD WITH A DISTRIBUTION OF Si AND/OR Al
Publication number
20170144273
Publication date
May 25, 2017
Smith International, Inc.
YAHUA BAO
E21 - EARTH DRILLING MINING
Information
Patent Application
SINTERING OF THICK SOLID CARBONATE-BASED PCD FOR DRILLING APPLICATION
Publication number
20170122038
Publication date
May 4, 2017
Smith International, Inc.
Yahua Bao
E21 - EARTH DRILLING MINING
Information
Patent Application
CARBONATE PCD AND METHODS OF MAKING THE SAME
Publication number
20170095906
Publication date
Apr 6, 2017
Smith International, Inc.
YAHUA BAO
E21 - EARTH DRILLING MINING
Information
Patent Application
HIGH CONTENT PCBN COMPACT INCLUDING W-RE BINDER
Publication number
20160303827
Publication date
Oct 20, 2016
Smith International, Inc.
Yahua Bao
B32 - LAYERED PRODUCTS
Information
Patent Application
ULTRA-HARD MATERIAL CUTTING ELEMENTS AND METHODS OF MANUFACTURING T...
Publication number
20160168919
Publication date
Jun 16, 2016
Smith International, Inc.
Liang Zhao
E21 - EARTH DRILLING MINING
Information
Patent Application
CHEMICAL LEACHING/THERMAL DECOMPOSING CARBONATE IN CARBONATE PCD
Publication number
20150183091
Publication date
Jul 2, 2015
Smith International, Inc.
Yahua Bao
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
PCD WAFER WITHOUT SUBSTRATE FOR HIGH PRESSURE / HIGH TEMPERATURE SI...
Publication number
20150183092
Publication date
Jul 2, 2015
Smith International, Inc.
Yahua Bao
E21 - EARTH DRILLING MINING
Information
Patent Application
THERMALLY STABLE POLYCRYSTALLINE DIAMOND AND METHODS OF MAKING THE...
Publication number
20150068817
Publication date
Mar 12, 2015
Smith International, Inc.
YAHUA BAO
E21 - EARTH DRILLING MINING
Information
Patent Application
CARBONATE PCD AND METHODS OF MAKING THE SAME
Publication number
20140259963
Publication date
Sep 18, 2014
Smith International, Inc.
YAHUA BAO
B24 - GRINDING POLISHING
Information
Patent Application
CARBONATE PCD WITH A DISTRIBUTION OF Si AND/OR Al
Publication number
20140259962
Publication date
Sep 18, 2014
Smith International, Inc.
YAHUA BAO
B24 - GRINDING POLISHING
Information
Patent Application
METHOD OF MAKING CARBONATE PCD AND SINTERING CARBONATE PCD ON CARBI...
Publication number
20140130418
Publication date
May 15, 2014
Smith International, Inc.
Yahua Bao
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SINTERING OF THICK SOLID CARBONATE-BASED PCD FOR DRILLING APPLICATION
Publication number
20140131117
Publication date
May 15, 2014
Smith International, Inc.
Yahua Bao
E21 - EARTH DRILLING MINING
Information
Patent Application
THERMALLY STABLE PCD WITH PCBN TRANSITION LAYER
Publication number
20140013913
Publication date
Jan 16, 2014
Smith International, Inc.
YAHUA BAO
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
TECHNIQUES AND MATERIALS FOR THE ACCELERATED REMOVAL OF CATALYST MA...
Publication number
20140007512
Publication date
Jan 9, 2014
Smith International, Inc.
J. Daniel Belnap
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
EDM CUTTABLE, HIGH CBN CONTENT SOLID PCBN COMPACT
Publication number
20130298475
Publication date
Nov 14, 2013
ELEMENT SIX LIMITED
Yahua Bao
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
HIGH PRESSURE HIGH TEMPERATURE CELL
Publication number
20130263748
Publication date
Oct 10, 2013
Smith International, Inc.
STEWART N. MIDDLEMISS
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
THERMAL INSULATION LAYER AND PRESSURE TRANSFER MEDIUM FOR HIGH PRES...
Publication number
20130266678
Publication date
Oct 10, 2013
YAHUA BAO
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR BRAZE JOINING OF CARBONATE PCD
Publication number
20130168158
Publication date
Jul 4, 2013
Smith International, Inc.
J. Daniel BELNAP
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR