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Eric P. Helsel
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New Enterprise, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Self-aligning adapter block
Patent number
10,934,840
Issue date
Mar 2, 2021
Kennametal Inc.
James R. Geyer
E21 - EARTH DRILLING MINING
Information
Patent Grant
Adapter block
Patent number
D909165
Issue date
Feb 2, 2021
Kennametal Inc.
James R. Geyer
D08 - Tools and hardware
Information
Patent Grant
Tool holder and base mounting assembly
Patent number
10,030,515
Issue date
Jul 24, 2018
Kennametal Inc.
Luke A. Weber
E21 - EARTH DRILLING MINING
Information
Patent Grant
Block with coolant delivery
Patent number
9,695,687
Issue date
Jul 4, 2017
Kennametal Inc.
Luke A. Weber
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cutting tool holder extraction device
Patent number
9,512,719
Issue date
Dec 6, 2016
Kennametal Inc.
Jeremiah L. Jonsrud
E21 - EARTH DRILLING MINING
Information
Patent Grant
Retention assembly for cutting bit
Patent number
8,523,289
Issue date
Sep 3, 2013
Kennametal Inc.
Eric P. Helsel
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Rotatable cutting tool-tool holder-base assembly
Patent number
8,523,290
Issue date
Sep 3, 2013
Kennametal Inc.
Eric P. Helsel
E21 - EARTH DRILLING MINING
Information
Patent Grant
Road milling drum having an adjustable width
Patent number
7,883,153
Issue date
Feb 8, 2011
Kennametal Inc.
Stephen P. Stiffler
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Cutting tool with water injection to the cutting bit shank
Patent number
7,883,154
Issue date
Feb 8, 2011
Kennametal Inc.
Wayne H. Beach
E21 - EARTH DRILLING MINING
Information
Patent Grant
Overlapping pedestals for supporting a block secured to a rotating...
Patent number
7,547,074
Issue date
Jun 16, 2009
Kennametal Inc.
Wayne H. Beach
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Edge cutter assembly for use with a rotatable drum
Patent number
7,475,949
Issue date
Jan 13, 2009
Kennametal Inc.
Eric P. Helsel
B28 - WORKING CEMENT, CLAY, OR STONE
Patents Applications
last 30 patents
Information
Patent Application
MULTI-TOOL CUTTING ASSEMBLY
Publication number
20250034837
Publication date
Jan 30, 2025
Kennametal Inc.
Brandon J. Kenno
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
CUTTER TOOTH ASSEMBLY FOR AN EXCAVATING TOOL
Publication number
20240044249
Publication date
Feb 8, 2024
Kennametal Inc.
Eric Helsel
E21 - EARTH DRILLING MINING
Information
Patent Application
SELF-ALIGNING ADAPTER BLOCK
Publication number
20210062652
Publication date
Mar 4, 2021
Kennametal Inc.
James R. GEYER
E21 - EARTH DRILLING MINING
Information
Patent Application
BLOCK WITH COOLANT DELIVERY
Publication number
20160341040
Publication date
Nov 24, 2016
Kennametal Inc.
Luke A. Weber
E21 - EARTH DRILLING MINING
Information
Patent Application
COLD FORMED SUPPORT BLOCK AND METHOD OF MAKING THE SAME
Publication number
20160332269
Publication date
Nov 17, 2016
Kennametal Inc.
Beth A. Provins
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
TOOL HOLDER AND BASE MOUNTING ASSEMBLY
Publication number
20160237818
Publication date
Aug 18, 2016
Kennametal Inc.
Luke A. Weber
E21 - EARTH DRILLING MINING
Information
Patent Application
CUTTING TOOL HOLDER EXTRACTION DEVICE
Publication number
20150128395
Publication date
May 14, 2015
Kennametal Inc.
Jeremiah L. Jonsrud
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
RETAINER FOR ROTATABLE CUTTING BIT
Publication number
20120049608
Publication date
Mar 1, 2012
Kennametal Inc.
Cary Douglas Ritchey
E21 - EARTH DRILLING MINING
Information
Patent Application
ROTATABLE CUTTING TOOL-TOOL HOLDER-BASE ASSEMBLY
Publication number
20110089746
Publication date
Apr 21, 2011
Kennametal Inc.
Eric P. Helsel
E21 - EARTH DRILLING MINING
Information
Patent Application
RETENTION ASSEMBLY FOR CUTTING BIT
Publication number
20110089747
Publication date
Apr 21, 2011
Kennametal Inc.
Eric P. Helsel
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
CUTTING TOOL WITH WATER INJECTION TO THE CUTTING BIT SHANK
Publication number
20100052406
Publication date
Mar 4, 2010
Wayne H. Beach
E21 - EARTH DRILLING MINING
Information
Patent Application
Road milling drum having an adjustable width
Publication number
20090067927
Publication date
Mar 12, 2009
Stephen P. Stiffler
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Application
Overlapping Pedestals For Supporting A Block Secured To A Rotating...
Publication number
20080164749
Publication date
Jul 10, 2008
Kennametal Inc.
Wayne H. Beach
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
Edge cutter assembly for use with a rotatable drum
Publication number
20080111418
Publication date
May 15, 2008
Eric P. Helsel
B28 - WORKING CEMENT, CLAY, OR STONE