Inventor
PINNOW KENNETH E
US22 patents
⚠️ This page may combine multiple inventors who share the name “PINNOW KENNETH E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CRUCIBLE MATERIALS CORP
18 patentsUS5989490ANov 23, 1999
Wear resistant, powder metallurgy cold work tool steel articles having high impact toughness and a method for producing the same
CRUCIBLE MATERIALS CORP18 citations92
US5830287ANov 3, 1998
Wear resistant, powder metallurgy cold work tool steel articles having high impact toughness and a method for producing the same
CRUCIBLE MATERIALS CORP26 citations92
US5522914AJun 4, 1996
Sulfur-containing powder-metallurgy tool steel article
CRUCIBLE MATERIALS CORP28 citations92
US5936169AAug 10, 1999
Corrosion resistant, high vanadium, powder metallurgy tool steel articles with improved metal to metal wear resistance and a method for producing the same
CRUCIBLE MATERIALS CORP17 citations91
US5900560AMay 4, 1999
Corrosion resistant, high vanadium, powder metallurgy tool steel articles with improved metal to metal wear resistance and method for producing the same
CRUCIBLE MATERIALS CORP28 citations91
US5447800ASep 5, 1995
Martensitic hot work tool steel die block article and method of manufacture
CRUCIBLE MATERIALS CORP25 citations91
US4942922AJul 24, 1990
Welded corrosion-resistant ferritic stainless steel tubing having high resistance to hydrogen embrittlement and a cathodically protected heat exchanger containing the same
CRUCIBLE MATERIALS CORP23 citations88
US4765836AAug 23, 1988
Wear and corrosion resistant articles made from pm alloyed irons
CRUCIBLE MATERIALS CORP22 citations78
US5344477ASep 6, 1994
Prealloyed high-vanadium, cold work tool steel particles
CRUCIBLE MATERIALS CORP11 citations73
US5238482AAug 24, 1993
Prealloyed high-vanadium, cold work tool steel particles and methods for producing the same
CRUCIBLE MATERIALS CORP14 citations73
US5538683AJul 23, 1996
Titanium-free, nickel-containing maraging steel die block article and method of manufacture
CRUCIBLE MATERIALS CORP9 citations72
US5482531AJan 9, 1996
Titanium-free, nickel-containing maraging steel die block article and method of manufacture
CRUCIBLE MATERIALS CORP13 citations72
US5435824AJul 25, 1995
Hot-isostatically-compacted martensitic mold and die block article and method of manufacture
CRUCIBLE MATERIALS CORP9 citations72
US4784828ANov 15, 1988
Low carbon plus nitrogen, free-machining austenitic stainless steel
CRUCIBLE MATERIALS CORP6 citations71
US4769213ASep 6, 1988
Age-hardenable stainless steel having improved machinability
CRUCIBLE MATERIALS CORP16 citations71
US4613367ASep 23, 1986
Low carbon plus nitrogen, free-machining austenitic stainless steel
CRUCIBLE MATERIALS CORP7 citations71
US4933142AJun 12, 1990
Low carbon plus nitrogen free-machining austenitic stainless steels with improved machinability and corrosion resistance
CRUCIBLE MATERIALS CORP4 citations60
US4797252AJan 10, 1989
Corrosion-resistant, low-carbon plus nitrogen austenitic stainless steels with improved machinability
CRUCIBLE MATERIALS CORP5 citations60