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

Patent Owner(s)

Patent Owner	Address
JAWAHARLAL NEHRU CENTRE FOR ADVANCED SCIENTIFIC RESEARCH	JAKKUR KARNATAKA BANGALORE 560064

International Classification(s)

• C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
• B09C:RECLAMATION OF CONTAMINATED SOIL
• B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....
• C02F:TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE....
• C11D:DETERGENT COMPOSITIONS
• B01D:SEPARATION

• 2016 Application Filing Year
• C09K Class
• 3076 Applications Filed
• 2094 Patents Issued To-Date
• 68.08 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
George, Subi Jacob	Bangalore, IN	6	73
# of filed Patents : 6 Total Citations : 73
Rao, Kotagiri Venkata	Andhra Pradesh, IN	3	2
# of filed Patents : 3 Total Citations : 2

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Patent Citation Ranking

• 0 Citation Count
• C09K 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	Oct 10, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Oct 10, 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
April 10, 2018	US,9937538,B2   US9937538B2	GRANTED PATENT AS SECOND PUBLICATION
September 08, 2016	US,20160256905,A1   US20160256905A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9937538

Hydrocarbon sorbent materials

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Abstract

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Sorbent polymers which are selective to taking up hydrocarbons are provided for separating hydrocarbons from fluids and taking up hydrocarbons from off of and intermixed with solid materials. The hydrocarbons may at least partially be expressed out of and recovered from the polymer by squeezing. The polymers may be re-used for picking up additional hydrocarbons. Methods for producing and using the polymers are also provided.

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Description

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Claims

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Legal Events

 

• LAPS2022
• STCH2022
• FP2022
• FEPP2021
• AS2019
• AS2018
• I2018
• STCF2018
• P2016
• F2016
• PD2012
• AS2011

Date	Code	Event	Description
May 16, 2022	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES	free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
May 16, 2022	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Apr 10, 2022	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Apr 10, 2022
Nov 29, 2021	FEPP	FEE PAYMENT PROCEDURE	free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
May 01, 2019	AS	ASSIGNMENT	free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CRESTLINE DIRECT FINANCE, L.P.;REEL/FRAME:049924/0794 Owner name: EMPIRE TECHNOLOGY DEVELOPMENT LLC, WASHINGTON Effective Date: May 01, 2019
Dec 28, 2018	AS	ASSIGNMENT	free format text: SECURITY INTEREST;ASSIGNOR:EMPIRE TECHNOLOGY DEVELOPMENT LLC;REEL/FRAME:048373/0217 Owner name: CRESTLINE DIRECT FINANCE, L.P., TEXAS Effective Date: Dec 28, 2018
Apr 10, 2018	I	Issuance
Mar 21, 2018	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Sep 08, 2016	P	Published
Feb 17, 2016	F	Filing
Jun 07, 2012	PD	Priority Date
Nov 16, 2011	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GEORGE, SUBI JACOB;RAO, KOTAGIRI VENKATA;REEL/FRAME:037757/0239 Owner name: JAWAHARLAL NEHRU CENTRE FOR ADVANCED SCIENTIFIC RE Effective Date: Nov 16, 2011