Inventor
GREENFIELD MARK S
US27 patents
⚠️ This page may combine multiple inventors who share the name “GREENFIELD MARK S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KENNAMETAL INC
20 patentsUS6866921B2Mar 15, 2005
Chromium-containing cemented carbide body having a surface zone of binder enrichment
KENNAMETAL INC20 citations92
US6554548B1Apr 29, 2003
Chromium-containing cemented carbide body having a surface zone of binder enrichment
KENNAMETAL INC36 citations92
US6998173B2Feb 14, 2006
Cemented carbide tool and method of making
KENNAMETAL INC38 citations91
US6638474B2Oct 28, 2003
method of making cemented carbide tool
KENNAMETAL INC29 citations91
US4886710ADec 12, 1989
Mining/construction tool bit having bit body fabricated from Mn-B steel alloy composition
KENNAMETAL INC20 citations82
US4859543AAug 22, 1989
Earth working tool having a working element fabricated from cemented tungsten carbide compositions with enhanced properties
KENNAMETAL INC19 citations82
US4817743AApr 4, 1989
Butterfly-type shim having semi-opened bottom and double sandwich braze joint produced therewith
KENNAMETAL INC23 citations78
US5112411AMay 12, 1992
Process of making mining/construction tool bit body fabricated from MN/B steel alloy composition
KENNAMETAL INC12 citations74
US9365925B2Jun 14, 2016
Multilayer structured coatings for cutting tools
KENNAMETAL INC4 citations72
US9656873B2May 23, 2017
Purification of tungsten carbide compositions
KENNAMETAL INC5 citations69
US6183687B1Feb 6, 2001
Hard composite and method of making the same
KENNAMETAL INC2 citations63
US5008073AApr 16, 1991
Mn-B steel alloy composition
KENNAMETAL INC4 citations63
US8828492B2Sep 9, 2014
Method of making aluminum oxynitride coated article
KENNAMETAL INC2 citations62
US8568866B2Oct 29, 2013
Multilayer nitride hard coatings
KENNAMETAL INC2 citations62
US10253410B2Apr 9, 2019
PVD-coated cutting tools and method for making the same
KENNAMETAL INC0 citations51
US9650713B2May 16, 2017
PVD-coated cutting tools and method for making the same
KENNAMETAL INC0 citations51
US9181620B2Nov 10, 2015
Coatings for cutting tools
KENNAMETAL INC1 citations51
US9903018B2Feb 27, 2018
Coated body wherein the coating scheme includes a coating layer of TiAl2O3 and method of making the same
KENNAMETAL INC0 citations50
US9371580B2Jun 21, 2016
Coated body wherein the coating scheme includes a coating layer of TiAl2O3 and method of making the same
KENNAMETAL INC1 citations50
US9181621B2Nov 10, 2015
Coatings for cutting tools
KENNAMETAL INC0 citations50