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

Patent Owner(s)

Patent Owner	Address
DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO LTD	22 DOOSANVOLVO-RO SEONGSAN-GU CHANGWON-SI GYEONGSANGNAM-DO 51711

International Classification(s)

• F23J:REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COM....

• 2016 Application Filing Year
• F23J Class
• 106 Applications Filed
• 77 Patents Issued To-Date
• 72.65 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hwang, Jae Min	Yeongwol-gun, KR	3	0
# of filed Patents : 3 Total Citations : 0
Lee, Sang Rin	Changwon-si, KR	7	20
# of filed Patents : 7 Total Citations : 20

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Patent Citation Ranking

• 0 Citation Count
• F23J Class

• 0 % this patent is cited more than
• 6 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Nov 14, 2026
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Nov 14, 2030

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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
May 14, 2019	US,10288284,B2   US10288284B2	GRANTED PATENT AS SECOND PUBLICATION
November 03, 2016	US,20160320055,A1   US20160320055A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 10288284

Apparatus for collecting large particle ash in thermal power plant

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Abstract

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An apparatus for collecting large particles, such as large particle ash generated during combustion in the thermal power plant, includes a main duct installed between an inlet duct extending in a first direction and an outlet duct extending in a second direction, and connected to the inlet duct and the outlet duct, a hopper installed in a lower portion of the main duct to collect large particles, and a flow switching section installed in the main duct in order to increase large particle collection efficiency by switching a flow direction of gas introduced from the inlet duct.

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Description

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Claims

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Legal Events

 

• MAFP2022
• P2019
• STCF2019
• STPP2019
• STPP2019
• P2016
• F2016
• AS2016
• PD2015

Date	Code	Event	Description
Nov 02, 2022	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4
May 14, 2019	P	Publication
Apr 24, 2019	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Apr 02, 2019	STPP	INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL	free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED
Feb 14, 2019	STPP	INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL	free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS
Nov 03, 2016	P	Published
Mar 03, 2016	F	Filing
Jan 04, 2016	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, SANG RIN;HWANG, JAE MIN;REEL/FRAME:039515/0150 Owner name: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD., Effective Date: Jan 04, 2016
Mar 06, 2015	PD	Priority Date