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

Patent Owner(s)

Patent Owner	Address
RUTGERS ORGANICS GMBH	68305 MANNHEIM

International Classification(s)

• C07D:HETEROCYCLIC COMPOUNDS

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hassler, Michael	Bruchsal, DE	1	2
# of filed Patents : 1 Total Citations : 2
Kleffner, Hans W	Battenberg, DE	10	12
# of filed Patents : 10 Total Citations : 12
Orth, Winfried	Hassloch, DE	24	52
# of filed Patents : 24 Total Citations : 52
Weiss, Wolfgang	Neckarhausen, DE	29	209
# of filed Patents : 29 Total Citations : 209

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Patent Citation Ranking

• 2 Citation Count
• C07D Class

• 0 % this patent is cited more than
• 35 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: 7749933

Rheological additive

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Abstract

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The invention relates to a rheological additive comprising illite clay, smectic clay and an attapulgite suitable for controlling the application characteristics of a coating material for porous bodies.

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Description

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Claims

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Legal Events

 

• MAFP2020
• FPAY2016
• FPAY2012
• I2008
• STCF2008
• P2005
• AS2004
• F2002
• PD2001

Date	Code	Event	Description
May 21, 2020	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 12TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2553); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 12
May 30, 2016	FPAY	FEE PAYMENT	year of fee payment: 8
May 25, 2012	FPAY	FEE PAYMENT	year of fee payment: 4
Dec 16, 2008	I	Issuance
Nov 25, 2008	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Apr 07, 2005	P	Published
Mar 05, 2004	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PRUDHAM, DANIEL;REEL/FRAME:014444/0194 Owner name: SOCIETE INDUSTRIELLE DE SONCEBOZ, S.A., SWITZERLAN Effective Date: Mar 05, 2004
Jul 12, 2002	F	Filing
Jul 18, 2001	PD	Priority Date