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

Patent Owner(s)

Patent Owner	Address
CHEVRON CHEMICAL COMPANY LLC	555 MARKET STREET SAN FRANCISCO CA 94105

International Classification(s)

• C07D:HETEROCYCLIC COMPOUNDS
• C10L:FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYN....
• C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Cherpeck, Richard E	Cotati, CA	96	691
# of filed Patents : 96 Total Citations : 691

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Patent Citation Ranking

• 13 Citation Count
• C07D Class

• 83.70 % this patent is cited more than
• 25 Age

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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: 6114542

Ethers of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and fuel compositions containing the same

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Abstract

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Ethers of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides having the formula: ##STR1## or a fuel soluble salt thereof. The compounds of formula I are useful as fuel additives for the prevention and control of engine deposits.

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Description

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Claims

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Legal Events

 

• STCH2018
• LAPS2004
• FP2004
• REMI2004
• I2000
• AS1998
• F1998
• PD1998

Date	Code	Event	Description
Jan 23, 2018	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Sep 07, 2004	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Sep 05, 2004	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Sep 05, 2004
Mar 24, 2004	REMI	MAINTENANCE FEE REMINDER MAILED
Sep 05, 2000	I	Issuance
Oct 05, 1998	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHERPECK, RICHARD E.;REEL/FRAME:009524/0915 Owner name: CHEVRON CHEMICAL COMPANY LLC, CALIFORNIA Effective Date: Oct 05, 1998
Aug 28, 1998	F	Filing
Aug 28, 1998	PD	Priority Date