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

Patent Owner(s)

Patent Owner	Address
TONEN CORPORATION	1-1 HITOTSUBASHI 1-CHOME CHIYODA-KU TOKYO 100

International Classification(s)

• C10M:LUBRICATING COMPOSITIONS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kawagoishi, Nobuchika	Ohi-Machi, JP	2	15
Kuribayashi, Toshiaki	Saitama, JP	12	149
Ogano, Satoshi	Fujimi, JP	8	191
Yoneda, Makota	Hidaka, JP	1	11

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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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
October 28, 2003	US,6638897,B2   US6638897B2	GRANTED PATENT AS SECOND PUBLICATION
December 20, 2001	US,20010053750,A1   US20010053750A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 6638897

Lubricant oil composition for internal combustion engines (law859)

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