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

Patent Owner(s)

Patent Owner	Address
VERTELLUS SPECIALTIES INC	1500 S TIBBS AVENUE INDIANAPOLIS IN 46242-0912

International Classification(s)

• C10C:WORKING-UP TAR, PITCH, ASPHALT, BITUMEN; PYROLIGNE....

• 1993 Application Filing Year
• C10C Class
• 8 Applications Filed
• 1 Patents Issued To-Date
• 12.50 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Roder, William	Indianapolis, IN	1	1
# of filed Patents : 1 Total Citations : 1
Scriven, Eric F V	Greenwood, IN	25	72
# of filed Patents : 25 Total Citations : 72

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Patent Citation Ranking

• 1 Citation Count
• C10C Class

• 9.09 % this patent is cited more than
• 29 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: 5534134

Low PAH pitch and process for same

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Abstract

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Described are preferred pitches which comprise a blend of coal tar pitch, petroleum pitch and gilsonite pitch, and preferred processes and compositions which can be used to form such pitches. The pitches have substantially reduced contents of polyaromatic hydrocarbons (PAH's) relative to standard coal tar pitches, and are thus more favorable from health, safety and environmental standpoints.

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Description

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Claims

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Legal Events

 

• AS2022
• AS�2014
• AS2014
• AS�2008
• FPAY2008
• SULP2008
• REMI2008
• AS2006
• AS2006
• AS2006
• AS2005
• FPAY2003
• FPAY1999
• FEPP1998
• I1996
• STCF1996
• AS1993
• F1993
• PD1993

Date	Code	Event	Description
Jun 27, 2022	AS	ASSIGNMENT	free format text: RELEASE (REEL 033591 / FRAME 0020);ASSIGNOR:WELLS FARGO BANK, NATIONAL ASSOCIATION;REEL/FRAME:060448/0192 Owner name: OSMOSE UTILITIES SERVICES, INC., GEORGIA Effective Date: Jun 27, 2022 free format text: RELEASE (REEL 033591 / FRAME 0020);ASSIGNOR:WELLS FARGO BANK, NATIONAL ASSOCIATION;REEL/FRAME:060448/0192 Owner name: KOPPERS PERFORMANCE CHEMICALS NEW ZEALAND LIMITED (F/K/A OSMOSE NEW ZEALAND), NEW ZEALAND Effective Date: Jun 27, 2022 free format text: RELEASE (REEL 033591 / FRAME 0020);ASSIGNOR:WELLS FARGO BANK, NATIONAL ASSOCIATION;REEL/FRAME:060448/0192 Owner name: KOPPERS INC. (F/K/A KOPPERS INDUSTRIES, INC), PENNSYLVANIA Effective Date: Jun 27, 2022 free format text: RELEASE (REEL 033591 / FRAME 0020);ASSIGNOR:WELLS FARGO BANK, NATIONAL ASSOCIATION;REEL/FRAME:060448/0192 Owner name: KOPPERS PERFORMANCE CHEMICALS INC. (F/K/A OSMOSE, INC.), GEORGIA Effective Date: Jun 27, 2022 free format text: RELEASE (REEL 033591 / FRAME 0020);ASSIGNOR:WELLS FARGO BANK, NATIONAL ASSOCIATION;REEL/FRAME:060448/0192 Owner name: KOPPERS DELAWARE, INC. (F/K/A KOPPERS INDUSTRIES OF DELAWARE, INC.), PENNSYLVANIA Effective Date: Jun 27, 2022
Aug 15, 2014	AS�	SECURITY INTEREST	free format text: PATENT, TRADEMARK AND COPYRIGHT SECURITY AGREEMENT;ASSIGNORS:KOPPERS INC.;KOPPERS HOLDINGS INC.;KOPPERS DELAWARE, INC.;AND OTHERS;REEL/FRAME:033591/0020 Owner name: WELLS FARGO BANK, NATIONAL ASSOCIATION, NEW YORK Effective Date: Aug 15, 2014
Aug 15, 2014	AS	ASSIGNMENT	free format text: TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS AND TRADEMARKS;ASSIGNOR:PNC BANK, NATIONAL ASSOCIATION;REEL/FRAME:033586/0727 Owner name: KOPPERS DELAWARE, INC., PENNSYLVANIA Effective Date: Aug 15, 2014 free format text: TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS AND TRADEMARKS;ASSIGNOR:PNC BANK, NATIONAL ASSOCIATION;REEL/FRAME:033586/0727 Owner name: KOPPERS INC., PENNSYLVANIA Effective Date: Aug 15, 2014
Oct 31, 2008	AS�	SECURITY INTEREST	free format text: AMENDED AND RESTATED PATENT, TRADEMARK AND COPYRIGHT SECURITY AGREEMENT;ASSIGNORS:KOPPERS, INC.;KOPPERS DELAWARE, INC.;REEL/FRAME:021773/0306 Owner name: PNC BANK, NATIONAL ASSOCIATION, PENNSYLVANIA Effective Date: Oct 31, 2008
Mar 19, 2008	FPAY	FEE PAYMENT	year of fee payment: 12
Mar 19, 2008	SULP	SURCHARGE FOR LATE PAYMENT	year of fee payment: 11
Jan 14, 2008	REMI	MAINTENANCE FEE REMINDER MAILED
Oct 16, 2006	AS	ASSIGNMENT	free format text: TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS;ASSIGNOR:SILVER POINT FINANCE, LLC;REEL/FRAME:018420/0404 Owner name: TIBBS AVENUE COMPANY, INDIANA Effective Date: Oct 16, 2006 free format text: TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS;ASSIGNOR:SILVER POINT FINANCE, LLC;REEL/FRAME:018420/0404 Owner name: VERTELLUS SPECIALTIES INC. (F/K/A REILLY INDUSTRIE Effective Date: Oct 16, 2006 free format text: TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS;ASSIGNOR:SILVER POINT FINANCE, LLC;REEL/FRAME:018420/0404 Owner name: RII-ACP ACQUISITION CORP., INDIANA Effective Date: Oct 16, 2006 free format text: TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS;ASSIGNOR:SILVER POINT FINANCE, LLC;REEL/FRAME:018420/0404 Owner name: VERTELLUS SPECIALTIES HOLDINGS CORP. (F/K/A REILLY Effective Date: Oct 16, 2006 free format text: TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS;ASSIGNOR:SILVER POINT FINANCE, LLC;REEL/FRAME:018420/0404 Owner name: MORFLEX, INC., INDIANA Effective Date: Oct 16, 2006
Jul 06, 2006	AS	ASSIGNMENT	free format text: CHANGE OF NAME;ASSIGNOR:REILLY INDUSTRIES, INC.;REEL/FRAME:017921/0833 Owner name: VERTELLUS SPECIALTIES INC., INDIANA Effective Date: Jul 06, 2006
Apr 28, 2006	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:REILLY INDUSTRIES, INC.;REEL/FRAME:018247/0318 Owner name: KOPPPERS DELAWARE, INC., DELAWARE Effective Date: Apr 28, 2006
Sep 29, 2005	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:RII-ACP ACQUISITION CORP.;REILLY INDUSTRIES, INC.;MORFLEX, INC.;AND OTHERS;REEL/FRAME:017656/0530 Owner name: SILVER POINT FINANCE, LLC, CONNECTICUT Effective Date: Sep 29, 2005
Dec 18, 2003	FPAY	FEE PAYMENT	year of fee payment: 8
Dec 16, 1999	FPAY	FEE PAYMENT	year of fee payment: 4
Nov 02, 1998	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Jul 09, 1996	I	Issuance
Jun 27, 1996	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Dec 15, 1993	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:RODER, WILLIAM;SCRIVEN, ERIC F. V.;REEL/FRAME:007164/0684 Owner name: REILLY INDUSTRIES, INC., INDIANA Effective Date: Dec 15, 1993
Nov 23, 1993	F	Filing
Nov 23, 1993	PD	Priority Date