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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
SAINT-GOBAIN/NORTON INDUSTRIAL CERAMICS CORP	WORCESTER MA

International Classification(s)

• C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Foley, Michael R	Oxford, MA	3	120
Paille, Norman I	Oxford, MA	2	106
Pelletier, Paul J	Sutton, MA	5	135
Pujari, Vimal K	Northboro, MA	39	648
Sales, Lenny C	Grafton, MA	7	129
Tracey, Dennis M	Medfield, MA	3	116
Willkens, Craig A	Worcester, MA	29	549
Yeckley, Russell L	Latrobe, PA	28	358

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent No: 5759481

Silicon nitride having a high tensile strength

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