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C21D9/22
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C
CHEMISTRY METALLURGY
C21
Iron metallurgy
C21D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
C21D9/00
Heat treatment
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C21D9/22
for drills for milling cutters for machine cutting tools
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Patents Grants
last 30 patents
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Patent Grant
Boring bit component with hard face wear resistance material with s...
Patent number
11,987,889
Issue date
May 21, 2024
Kondex Corporation
Keith A. Johnson
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of treating a mining insert
Patent number
11,898,213
Issue date
Feb 13, 2024
AB Sandvik Coromant
Ioannis Arvanitidis
C21 - METALLURGY OF IRON
Information
Patent Grant
Surface-hardened, rotationally symmetrical workpiece, hardening met...
Patent number
11,697,858
Issue date
Jul 11, 2023
WALZENGIESSEREI COSWIG GMBH
Sven Baumgart
C21 - METALLURGY OF IRON
Information
Patent Grant
System for treating material of a cutting element
Patent number
11,642,741
Issue date
May 9, 2023
Kooima Ag, Inc.
Zachary T. Pramann
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Wear-resistant armored cutting tool
Patent number
11,585,216
Issue date
Feb 21, 2023
Kennametal Inc.
Robbie D. Bloom
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Drill component
Patent number
11,047,028
Issue date
Jun 29, 2021
Sandvik Intellectual Property AB
Anna Wennberg
C21 - METALLURGY OF IRON
Information
Patent Grant
Martensitic stainless steel
Patent number
10,941,469
Issue date
Mar 9, 2021
AB Sandvik Materials Technology
Anna Wennberg
C21 - METALLURGY OF IRON
Information
Patent Grant
Drill bit for drilling and method for manufacturing same
Patent number
10,871,038
Issue date
Dec 22, 2020
EHWA DIAMOND INDUSTRIAL CO., LTD.
Ki-Ho Kim
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Compressive residual stress-hardened downhole tool shaft region
Patent number
10,829,832
Issue date
Nov 10, 2020
Halliburton Energy Services, Inc.
Venkkateesh Parthasarathi Padmarekha
C21 - METALLURGY OF IRON
Information
Patent Grant
High-speed tool steel, material for tools, and method for producing...
Patent number
10,787,719
Issue date
Sep 29, 2020
Hitachi Metals, Ltd.
Shiho Fukumoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing high-speed tool steel material, method for pro...
Patent number
10,661,353
Issue date
May 26, 2020
Hitachi Metals, Ltd.
Shiho Fukumoto
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Drill bit for drilling and method for manufacturing same
Patent number
10,605,007
Issue date
Mar 31, 2020
EHWA Diamond Industrial Co., Ltd.
Ki-Ho Kim
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for treating toughness and hardness of drill bit buttons
Patent number
10,597,744
Issue date
Mar 24, 2020
Epiroc Drilling Tools Aktiebolag
Tomas Rostvall
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Soil auger and method of manufacture
Patent number
10,589,332
Issue date
Mar 17, 2020
Sentek Pty Ltd
Peter Tucker
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Cutting elements comprising a low-carbon steel material, related ea...
Patent number
10,273,758
Issue date
Apr 30, 2019
Baker Hughes Incorporated
Kenneth R. Evans
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Die steel and method for producing same
Patent number
10,196,719
Issue date
Feb 5, 2019
Hitachi Metals, Ltd.
Ryuuichiroh Sugano
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Tire rasp blade
Patent number
10,184,161
Issue date
Jan 22, 2019
B & J Rocket Sales AG
Bent Toft Andersen
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Earth-boring tools with precise cutter pocket location and orientat...
Patent number
10,005,158
Issue date
Jun 26, 2018
Baker Hughes Incorporated
Eric C. Sullivan
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for manufacturing superior 13Cr friction-welded drillrod
Patent number
9,988,857
Issue date
Jun 5, 2018
Baoshan Iron & Steel Co., Ltd.
Peng Zhao
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Rotary drill bits comprising maraging steel and methods of forming...
Patent number
9,963,940
Issue date
May 8, 2018
Baker Hughes Incorporated
Xiaomin Chris Cheng
C21 - METALLURGY OF IRON
Information
Patent Grant
Creping blade and method for its manufacturing
Patent number
9,896,802
Issue date
Feb 20, 2018
VOESTALPINE PRECISION STRIP AB
Chris Millward
C21 - METALLURGY OF IRON
Information
Patent Grant
Screw conveyor made of alloyed steel and tempered by electromagneti...
Patent number
9,790,568
Issue date
Oct 17, 2017
Joao Augusto Streit
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Steel for machine structure use excellent in cutting tool lifetime...
Patent number
9,725,783
Issue date
Aug 8, 2017
Nippon Steel & Sumitomo Metal Corporation
Toshiharu Aiso
C21 - METALLURGY OF IRON
Information
Patent Grant
Punching tool
Patent number
9,610,697
Issue date
Apr 4, 2017
BOEHLER-UDDEHOLM PRECISION STRIP GMBH
Anton Haas
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Methods of thermo-mechanically processing tool steel and tools made...
Patent number
9,481,023
Issue date
Nov 1, 2016
Dayton Progress Corporation
Christon L. Shepard
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method of manufacturing cemented carbide cutting tool and cutting t...
Patent number
9,434,034
Issue date
Sep 6, 2016
Jung Woo Nam
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Chisels
Patent number
9,333,635
Issue date
May 10, 2016
BLACK & DECKER INC.
Thomas J. Quinn
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Recrystallization, refinement, and strengthening mechanisms for pro...
Patent number
9,284,635
Issue date
Mar 15, 2016
The NanoSteel company, Inc.
Daniel James Branagan
C21 - METALLURGY OF IRON
Information
Patent Grant
High speed tool steel, material for blade edge, cutting tool, and m...
Patent number
9,273,384
Issue date
Mar 1, 2016
Hitachi Metals, Ltd.
Shiho Fukumoto
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Drill bit for a rock drilling tool with increased toughness and met...
Patent number
9,242,336
Issue date
Jan 26, 2016
Atlas Copco Secoroc AB
Jimmy Carlsson
B24 - GRINDING POLISHING
Patents Applications
last 30 patents
Information
Patent Application
SURFACE-HARDENED, ROTATIONALLY SYMMETRICAL WORKPIECE, HARDENING MET...
Publication number
20230349018
Publication date
Nov 2, 2023
WALZENGIESSEREI COSWIG GMBH
Sven BAUMGART
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
METHOD OF TREATING A MINING INSERT
Publication number
20230036990
Publication date
Feb 2, 2023
AB SANDVIK COROMANT
Ioannis ARVANITIDIS
C21 - METALLURGY OF IRON
Information
Patent Application
Deep Cryogenic Treatment Chamber for Industrial Applications
Publication number
20220275989
Publication date
Sep 1, 2022
Derep Cryogenics International Inc.
Jack Cahn
C21 - METALLURGY OF IRON
Information
Patent Application
Drill Tool and Method for Producing Same
Publication number
20220090222
Publication date
Mar 24, 2022
FURUKAWA ROCK DRILL CO., LTD.
Yoshimi Matsumoto
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
SURFACE-HARDENED, ROTATIONALLY SYMMETRICAL WORKPIECE, HARDENING MET...
Publication number
20210332453
Publication date
Oct 28, 2021
WALZENGIESSEREI COSWIG GMBH
Sven BAUMGART
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
SYSTEM FOR TREATING MATERIAL OF A CUTTING ELEMENT
Publication number
20210316397
Publication date
Oct 14, 2021
KOOIMA AG
ZACHARY T. PRAMANN
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
BORING BIT COMPONENT WITH HARD FACE WEAR RESISTANCE MATERIAL WITH S...
Publication number
20200325584
Publication date
Oct 15, 2020
Kondex Corporation
Keith A. Johnson
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
METHOD FOR PRODUCING HIGH-SPEED TOOL STEEL MATERIAL, METHOD FOR PRO...
Publication number
20200246877
Publication date
Aug 6, 2020
Hitachi Metals, Ltd.
Shiho FUKUMOTO
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
DRILL BIT FOR DRILLING AND METHOD FOR MANUFACTURING SAME
Publication number
20200190911
Publication date
Jun 18, 2020
EHWA DIAMOND INDUSTRIAL CO., LTD.
Ki-Ho KIM
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
DRILL COMPONENT
Publication number
20180209024
Publication date
Jul 26, 2018
Sandvik Intellectual Property AB
Anna WENNBERG
C21 - METALLURGY OF IRON
Information
Patent Application
COMPRESSIVE RESIDUAL STRESS-HARDENED DOWNHOLE TOOL SHAFT REGION
Publication number
20180171427
Publication date
Jun 21, 2018
Halliburton Energy Services, Inc.
Venkkateesh Parthasarathi Padmarekha
C21 - METALLURGY OF IRON
Information
Patent Application
A METHOD FOR TREATING TOUGHNESS AND HARDNESS OF DRILL BIT BUTTONS
Publication number
20180171428
Publication date
Jun 21, 2018
ATLAS COPCO SECOROC AB
Tomas Rostvall
B24 - GRINDING POLISHING
Information
Patent Application
MMC DOWNHOLE TOOL REGION COMPRISING AN ALLOTROPIC MATERIAL
Publication number
20180163481
Publication date
Jun 14, 2018
Halliburton Energy Services, Inc.
Venkkateesh Parthasarathi Padmarekha
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING HIGH-SPEED TOOL STEEL MATERIAL, METHOD FOR PRO...
Publication number
20180147636
Publication date
May 31, 2018
Hitachi Metals, Ltd.
Shiho FUKUMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
BAINITIC STEEL FOR ROCK DRILLING COMPONENT
Publication number
20180105905
Publication date
Apr 19, 2018
Sandvik Intellectual Property AB
Johan LINDEN
C21 - METALLURGY OF IRON
Information
Patent Application
DRILL BIT FOR DRILLING AND METHOD FOR MANUFACTURING SAME
Publication number
20170275949
Publication date
Sep 28, 2017
EHWA DIAMOND INDUSTRIAL CO., LTD.
Ki-Ho KIM
C21 - METALLURGY OF IRON
Information
Patent Application
A TIRE RASP BLADE
Publication number
20170159147
Publication date
Jun 8, 2017
B & J ROCKET SALES AG
Bent Toft ANDERSEN
C21 - METALLURGY OF IRON
Information
Patent Application
SOIL AUGER AND METHOD OF MANUFACTURE
Publication number
20170120315
Publication date
May 4, 2017
SENTEK PTY LTD
Peter Tucker
C21 - METALLURGY OF IRON
Information
Patent Application
PARTIALLY HARDENED ROTARY TOOL AND CORRESPONDING PRODUCTION METHOD
Publication number
20170072477
Publication date
Mar 16, 2017
Gühring KG
Jochen BITZER
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF MANUFACTURING GEAR-CUTTING TOOLS
Publication number
20160354850
Publication date
Dec 8, 2016
Caterpillar Inc.
GABRIEL J. ELLICOTT
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
STAINLESS STEEL AND A CUTTING TOOL BODY MADE OF THE STAINLESS STEEL
Publication number
20160333449
Publication date
Nov 17, 2016
UDDEHOLMS AB
Staffan GUNNARSSON
C21 - METALLURGY OF IRON
Information
Patent Application
CREPING BLADE AND METHOD FOR ITS MANUFACTURING
Publication number
20160333523
Publication date
Nov 17, 2016
VOESTALPINE PRECISION STRIP AB
Chris MILLWARD
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING A DRILL BIT
Publication number
20160229010
Publication date
Aug 11, 2016
Compass Corporation
Tzu-Chien Wang
C21 - METALLURGY OF IRON
Information
Patent Application
EARTH-BORING TOOLS WITH PRECISE CUTTER POCKET LOCATION AND ORIENTAT...
Publication number
20160158894
Publication date
Jun 9, 2016
BAKER HUGHES INCORPORATED
Eric C. Sullivan
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF MANUFACTURING CEMENTED CARBIDE CUTTING TOOL AND CUTTING T...
Publication number
20160144468
Publication date
May 26, 2016
Jung Woo NAM
C21 - METALLURGY OF IRON
Information
Patent Application
BAINITIC STEEL FOR ROCK DRILLING COMPONENT
Publication number
20150344997
Publication date
Dec 3, 2015
Sandvik Intellectual Property AB
Johan LINDEN
C21 - METALLURGY OF IRON
Information
Patent Application
ROTARY DRILL BITS COMPRISING MARAGING STEEL AND METHODS OF FORMING...
Publication number
20150204142
Publication date
Jul 23, 2015
BAKER HUGHES INCORPORATED
Xiaomin Chris Cheng
C21 - METALLURGY OF IRON
Information
Patent Application
CHISELS
Publication number
20150096548
Publication date
Apr 9, 2015
Black & Decker Inc.
Thomas J. QUINN
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
Recrystallization, Refinement, and Strengthening Mechanisms For Pro...
Publication number
20150090372
Publication date
Apr 2, 2015
THE NANOSTEEL COMPANY, INC.
Daniel James BRANAGAN
C21 - METALLURGY OF IRON
Information
Patent Application
TUBE WELDING ROD RESISTANT TO HIGH STRESS ABRASION
Publication number
20140305922
Publication date
Oct 16, 2014
KINGDREAM PUBLIC LIMITED COMPANY
Liehua Zhang
C21 - METALLURGY OF IRON