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

Patent Owner(s)

Patent Owner	Address
TAIWAN TEXTILE RESEARCH INSTITUTE	NEW TAIPEI CITY

International Classification(s)

• B01D:SEPARATION

• 2014 Application Filing Year
• B01D Class
• 3939 Applications Filed
• 3248 Patents Issued To-Date
• 82.46 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chen, Jun-Hong	New Taipei, TW	15	10
# of filed Patents : 15 Total Citations : 10
Li, Yu-Ling	New Taipei, TW	4	15
# of filed Patents : 4 Total Citations : 15
Lin, Po-Ju	New Taipei, TW	4	7
# of filed Patents : 4 Total Citations : 7

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Patent Citation Ranking

• 0 Citation Count
• B01D Class

• 0 % this patent is cited more than
• 7 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	Aug 6, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Aug 6, 2029

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
February 06, 2018	US,9884296,B2   US9884296B2	GRANTED PATENT AS SECOND PUBLICATION
November 12, 2015	US,20150321146,A1   US20150321146A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9884296

Composite membrane utilized in membrane distillation

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Abstract

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A composite membrane includes a hydrophobic porous membrane and a high water content hydrogel layer disposed on the surface of the hydrophobic porous membrane facing the hot end. The surface active agents contained in the wastewater at the hot end are blocked by the high water content hydrogel layer, thus the problem of pore wetting of the hydrophobic porous membrane can be prevented. Therefore, the membrane distillation technique can be utilized for processing wastewater containing surface active agents.

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Description

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Claims

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Legal Events

 

• MAFP2021
• I2018
• STCF2018
• P2015
• F2014
• AS2014
• PD2014

Date	Code	Event	Description
Jul 21, 2021	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 4
Feb 06, 2018	I	Issuance
Jan 17, 2018	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Nov 12, 2015	P	Published
Dec 29, 2014	F	Filing
Dec 25, 2014	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIN, PO-JU;CHEN, JUN-HONG;LI, YU-LING;REEL/FRAME:034591/0043 Owner name: TAIWAN TEXTILE RESEARCH INSTITUTE, TAIWAN Effective Date: Dec 25, 2014
May 09, 2014	PD	Priority Date