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Gary Portwood
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Florence, IT
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Patents Grants
last 30 patents
Information
Patent Grant
Drill bit for use with intensified fluid pressures
Patent number
12,037,850
Issue date
Jul 16, 2024
Schlumberger Technology Corporation
Gary R. Portwood
E21 - EARTH DRILLING MINING
Information
Patent Grant
Fixed cutter drill bit with high fluid pressures
Patent number
11,566,475
Issue date
Jan 31, 2023
Schlumberger Technology Corporation
Gary R. Portwood
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill bit for use with intensified fluid pressures
Patent number
11,512,536
Issue date
Nov 29, 2022
Schlumberger Technology Corporation
Gary R. Portwood
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rolling cone drill bit having high density cutting elements
Patent number
9,074,431
Issue date
Jul 7, 2015
Smith International, Inc.
Gary Portwood
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rolling cone drill bit having sharp cutting elements in a zone of i...
Patent number
8,316,968
Issue date
Nov 27, 2012
Smith International, Inc.
Giampaolo Ferrari
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rock bit with vectored hydraulic nozzle retention sleeves
Patent number
8,091,654
Issue date
Jan 10, 2012
Smith International, Inc.
Luca Tedeschi
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rock bit with hydraulic configuration
Patent number
7,913,778
Issue date
Mar 29, 2011
Smith International, Inc.
Luca Tedeschi
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill bit and cutting inserts for hard/abrasive formations
Patent number
7,690,442
Issue date
Apr 6, 2010
Smith International, Inc.
Gary Portwood
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
DRILL BIT FOR USE WITH INTENSIFIED FLUID PRESSURES
Publication number
20240360725
Publication date
Oct 31, 2024
SCHLUMBERGER TECHNOLOGY CORPORATION
Gary R. Portwood
E21 - EARTH DRILLING MINING
Information
Patent Application
FIXED CUTTER DRILL BIT WITH HIGH FLUID PRESSURES
Publication number
20230167689
Publication date
Jun 1, 2023
SCHLUMBERGER TECHNOLOGY CORPORATION
Gary R. Portwood
E21 - EARTH DRILLING MINING
Information
Patent Application
DRILL BIT FOR USE WITH INTENSIFIED FLUID PRESSURES
Publication number
20230097242
Publication date
Mar 30, 2023
SCHLUMBERGER TECHNOLOGY CORPORATION
Gary R. Portwood
E21 - EARTH DRILLING MINING
Information
Patent Application
FIXED CUTTER DRILL BIT WITH HIGH FLUID PRESSURES
Publication number
20210277721
Publication date
Sep 9, 2021
Smith International, Inc.
Gary R. Portwood
E21 - EARTH DRILLING MINING
Information
Patent Application
DRILL BIT FOR USE WITH INTENSIFIED FLUID PRESSURES
Publication number
20210140245
Publication date
May 13, 2021
Smith International, Inc.
Gary R. Portwood
E21 - EARTH DRILLING MINING
Information
Patent Application
LOW COLLISION DAMAGE BIT
Publication number
20160145945
Publication date
May 26, 2016
Smith International, Inc.
Gary R. Portwood
E21 - EARTH DRILLING MINING
Information
Patent Application
BALANCING OF DRILL BITS
Publication number
20150101868
Publication date
Apr 16, 2015
Smith International, Inc.
Luca Tedeschi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
ROLLING CONE DRILL BIT HAVING SHARP CUTTING ELEMENTS IN A ZONE OF I...
Publication number
20100276207
Publication date
Nov 4, 2010
Smith International, Inc.
Giampaolo Ferrari
E21 - EARTH DRILLING MINING
Information
Patent Application
Rolling Cone Drill Bit Having High Density Cutting Elements
Publication number
20090188724
Publication date
Jul 30, 2009
Smith International, Inc.
Gary Portwood
E21 - EARTH DRILLING MINING
Information
Patent Application
ROCK BIT WITH VECTORED HYDRAULIC NOZZLE RETENTION SLEEVES
Publication number
20090159340
Publication date
Jun 25, 2009
SMITH INTERNATIONAL CORPORATION
Luca Tedeschi
E21 - EARTH DRILLING MINING
Information
Patent Application
ROCK BIT WITH HYDRAULIC CONFIGURATION
Publication number
20090095536
Publication date
Apr 16, 2009
Smith International, Inc.
Luca Tedeschi
E21 - EARTH DRILLING MINING
Information
Patent Application
CUTTING ELEMENTS WITH INCREASED TOUGHNESS AND THERMAL FATIGUE RESIS...
Publication number
20080245576
Publication date
Oct 9, 2008
Smith International, Inc.
Dah-Ben Liang
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Drill Bit and Cutting Inserts For Hard/Abrasive Formations
Publication number
20060260846
Publication date
Nov 23, 2006
Smith International, Inc.
Gary Portwood
E21 - EARTH DRILLING MINING