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HAIBO ZHANG
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LINDON, UT, US
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Patents Grants
last 30 patents
Information
Patent Grant
Polycrystalline diamond cutting element having improved cutting eff...
Patent number
12,078,015
Issue date
Sep 3, 2024
Schlumberger Technology Corporation
Ronald K. Eyre
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cutting elements with wear resistant diamond surface
Patent number
11,199,051
Issue date
Dec 14, 2021
Schlumberger Technology Corporation
Yi Fang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cutting elements with impact resistant diamond body
Patent number
11,008,815
Issue date
May 18, 2021
Schlumberger Technology Corporation
John Daniel Belnap
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
Ultra-hard constructions with erosion resistance
Patent number
10,107,042
Issue date
Oct 23, 2018
Smith International, Inc.
Feng Yu
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Cutting elements with wear resistant diamond surface
Patent number
10,100,583
Issue date
Oct 16, 2018
Smith International, Inc.
Yi Fang
B24 - GRINDING POLISHING
Information
Patent Grant
Diamond enhanced insert with controlled diamond frame strength
Patent number
10,016,873
Issue date
Jul 10, 2018
Smith International, Inc.
Yi Fang
B24 - GRINDING POLISHING
Patents Applications
last 30 patents
Information
Patent Application
POLYCRYSTALLINE DIAMOND CUTTING ELEMENT HAVING IMPROVED CUTTING EFF...
Publication number
20220307325
Publication date
Sep 29, 2022
SCHLUMBERGER TECHNOLOGY CORPORATION
Ronald K. Eyre
E21 - EARTH DRILLING MINING
Information
Patent Application
CUTTING ELEMENTS WITH WEAR RESISTANT DIAMOND SURFACE
Publication number
20190040688
Publication date
Feb 7, 2019
Smith International, Inc.
Yi Fang
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
CUTTING ELEMENTS WITH IMPACT RESISTANT DIAMOND BODY
Publication number
20180216411
Publication date
Aug 2, 2018
Smith International, Inc.
John Daniel Belnap
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
DIAMOND ENHANCED INSERT WITH CONTROLLED DIAMOND FRAME STRENGTH
Publication number
20160144482
Publication date
May 26, 2016
Smith International, Inc.
Yi Fang
E21 - EARTH DRILLING MINING
Information
Patent Application
CUTTING ELEMENTS WITH WEAR RESISTANT DIAMOND SURFACE
Publication number
20150060151
Publication date
Mar 5, 2015
Smith International, Inc.
YI FANG
E21 - EARTH DRILLING MINING
Information
Patent Application
ULTRA-HARD CONSTRUCTIONS WITH EROSION RESISTANCE
Publication number
20140069725
Publication date
Mar 13, 2014
Smith International, Inc.
FENG YU
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...