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

Patent Owner(s)

Patent Owner	Address
CLEAN ENERGY SYSTEMS INC	11330 SUNCO DRIVE SUITE A RANCHO CORDOVA CA 95742

International Classification(s)

• F02C:GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION....

• 2002 Application Filing Year
• F02C Class
• 394 Applications Filed
• 217 Patents Issued To-Date
• 55.08 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Anderson, Roger E	Gold River, CA	25	2708
# of filed Patents : 25 Total Citations : 2708
Viteri, Fermin	Sacramento, CA	27	3354
# of filed Patents : 27 Total Citations : 3354

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Patent Citation Ranking

• 108 Citation Count
• F02C Class

• 98.93 % this patent is cited more than
• 20 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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
March 22, 2005	US,6868677,B2   US6868677B2	GRANTED PATENT AS SECOND PUBLICATION
November 28, 2002	US,20020174659,A1   US20020174659A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 6868677

Combined fuel cell and fuel combustion power generation systems

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Abstract

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A power generation system is provided which converts chemical energy in one or more fuels into electrical and/or mechanical power. The system includes both fuel cells to directly convert electrical energy in a fuel into electrical power and at lest one combustor and expander to generate mechanical power, optionally than converted to electrical power in a generator. Fuel cell products disclosed from the fuel cell are entered into the combustor to be heated along with products of combustion created in the combustor and expanded in the expander along with the products of combustion.

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Description

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Claims

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Legal Events

 

• STCH2017
• FP2017
• LAPS2017
• REMI2016
• AS2015
• FPAY2012
• FPAY2008
• I2005
• AS2003
• P2002
• F2002
• PD2001

Date	Code	Event	Description
Apr 17, 2017	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Mar 22, 2017	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Mar 22, 2017
Mar 22, 2017	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Oct 28, 2016	REMI	MAINTENANCE FEE REMINDER MAILED
May 15, 2015	AS	ASSIGNMENT	free format text: SECURITY INTEREST;ASSIGNOR:CLEAN ENERGY SYSTEMS, INC.;REEL/FRAME:035723/0077 Owner name: SOUTHERN CALIFORNIA GAS COMPANY, CALIFORNIA Effective Date: May 15, 2015
Aug 31, 2012	FPAY	FEE PAYMENT	year of fee payment: 8
May 26, 2008	FPAY	FEE PAYMENT	year of fee payment: 4
Mar 22, 2005	I	Issuance
Aug 04, 2003	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ANDERSON, ROGER E.;BRANDT, HARRY;VITERI, FERMIN;REEL/FRAME:014342/0748;SIGNING DATES FROM 20030714 TO 20030721 Owner name: CLEAN ENERGY SYSTEMS, INC., CALIFORNIA
Nov 28, 2002	P	Published
May 24, 2002	F	Filing
May 24, 2001	PD	Priority Date