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

Patent Owner(s)

Patent Owner	Address
EVONIK ROHMAX ADDITIVES GMBH	DARMSTADT DARMSTADT HESSIAN

International Classification(s)

• C10L:FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYN....

• 2000 Application Filing Year
• C10L Class
• 142 Applications Filed
• 67 Patents Issued To-Date
• 47.19 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Auschra, Clemens	Freiburg, DE	62	354
# of filed Patents : 62 Total Citations : 354
Boehmke, Uwe	Darmstadt, DE	3	57
# of filed Patents : 3 Total Citations : 57
Neusius, Michael	Darmstadt, DE	6	74
# of filed Patents : 6 Total Citations : 74
Vetter, Joachim	Offenbach, DE	5	107
# of filed Patents : 5 Total Citations : 107

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Patent Citation Ranking

• 49 Citation Count
• C10L Class

• 99.28 % this patent is cited more than
• 23 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: 6409778

Additive for biodiesel and biofuel oils

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Abstract

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The invention relates to a copolymer consisting of the following monomer components: a) 48-98 wt. % of compounds of formula (I), b) 2-30 wt. % of one or several oxygen-containing methacrylates of formula (II) and c) 0-30 wt. % of a methacrylate of formula (III) of styrol, the quantities a)-c) totalling 100 wt. %. The inventive copolymer is suitable as a an additive for diesel fuels and biodiesel.

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Description

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Claims

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Claims data not available

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Legal Events

 

• FPAY2013
• FPAY2009
• AS2007
• FPAY2005
• I2002
• STCF2002
• AS2002
• AS2001
• F2000
• PD1997

Date	Code	Event	Description
Dec 19, 2013	FPAY	FEE PAYMENT	year of fee payment: 12
Dec 21, 2009	FPAY	FEE PAYMENT	year of fee payment: 8
Sep 21, 2007	AS	ASSIGNMENT	free format text: CHANGE OF NAME;ASSIGNOR:ROHMAX ADDITIVES GMBH;REEL/FRAME:023998/0585 Owner name: EVONIK ROHMAX ADDITIVES GMBH,GERMANY Effective Date: Sep 21, 2007 free format text: CHANGE OF NAME;ASSIGNOR:ROHMAX ADDITIVES GMBH;REEL/FRAME:023998/0585 Owner name: EVONIK ROHMAX ADDITIVES GMBH, GERMANY Effective Date: Sep 21, 2007
Dec 15, 2005	FPAY	FEE PAYMENT	year of fee payment: 4
Jun 25, 2002	I	Issuance
Jun 06, 2002	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
May 02, 2002	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:AUSCHRA, CLEMENS;VETTER, JOACHIM;BOEHMKE, UWE;AND OTHERS;REEL/FRAME:012855/0480;SIGNING DATES FROM 20000508 TO 20000608 Owner name: ROHMAX ADDITIVES GMBH, GERMANY
Aug 31, 2001	AS	ASSIGNMENT	free format text: CHANGE IN LEGAL CONSTITUTION;ASSIGNOR:ROHMAX ADDITIVES GMBH;REEL/FRAME:013000/0226 Owner name: ROHMAX ADDITIVES GMBH, GERMANY Effective Date: Aug 31, 2001
Jun 28, 2000	F	Filing
Nov 21, 1997	PD	Priority Date