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

Patent Owner(s)

Patent Owner	Address
EXP SERVICES INC	BRAMPTON ON L6V 4M8

International Classification(s)

• C22B:PRODUCTION OR REFINING OF METALS
• C01F:COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUM....

• 2007 Application Filing Year
• C22B Class
• 169 Applications Filed
• 94 Patents Issued To-Date
• 55.63 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Beaulieu, Martin	Ste-Foy, CA	47	579
# of filed Patents : 47 Total Citations : 579
Chabot, Stéphane	Lévis, CA	9	61
# of filed Patents : 9 Total Citations : 61
Charest, Yves	Ancienne-Lorette, CA	14	66
# of filed Patents : 14 Total Citations : 66
Savard, Jean-François	Ste-Foy, CA	2	26
# of filed Patents : 2 Total Citations : 26

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Patent Citation Ranking

• 13 Citation Count
• C22B Class

• 85.60 % this patent is cited more than
• 14 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 15, 2011	US,7906097,B2   US7906097B2	GRANTED PATENT AS SECOND PUBLICATION
January 22, 2009	US,20090022640,A1   US20090022640A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9878979

Fine purification of isophoronenitrile by melt crystallization

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Abstract

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The present invention relates to the fine purification of isophoronenitrile (IPN) by melt crystallization.

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Description

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Claims

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Claims data not available

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Legal Events

 

• STCH2013
• FP2013
• LAPS2013
• REMI2013
• FPAY2008
• CC2005
• I2005
• FEPP2004
• F2000
• PD1998

Date	Code	Event	Description
Jul 15, 2013	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Jun 14, 2013	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Jun 14, 2013
Jun 14, 2013	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Jan 28, 2013	REMI	MAINTENANCE FEE REMINDER MAILED
Nov 13, 2008	FPAY	FEE PAYMENT	year of fee payment: 4
Sep 06, 2005	CC	CERTIFICATE OF CORRECTION
Jun 14, 2005	I	Issuance
Oct 31, 2004	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Jun 07, 2000	F	Filing
Sep 25, 1998	PD	Priority Date