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

Patent Owner(s)

Patent Owner	Address
MOLMED SPA	20132 MILAN

International Classification(s)

• C12N:MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Massa, Stefania	Milan, IT	5	8
# of filed Patents : 5 Total Citations : 8
Radrizzani, Marina	Milan, IT	7	12
# of filed Patents : 7 Total Citations : 12
Salvatori, Francesca	Milan, IT	7	11
# of filed Patents : 7 Total Citations : 11
Toma, Salvatore	Milan, IT	11	31
# of filed Patents : 11 Total Citations : 31

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Patent Citation Ranking

• 1 Citation Count
• C12N Class

• 26.89 % this patent is cited more than
• 11 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Aug 4, 2025

Fee	Large entity fee	small entity fee	micro entity fee
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 04, 2014	US,8642311,B2   US8642311B2	GRANTED PATENT AS SECOND PUBLICATION
January 31, 2013	US,20130028876,A1   US20130028876A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9216227

Activated sialic acid derivatives for protein derivatisation and conjugation

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Abstract

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Derivatives of PSAs are synthesized, in which a reducing and/or non-reducing end terminal sialic acid unit is transformed into a N-hydroxysuccinimide (NHS) group. The derivatives may be reacted with substrates, for instance substrates containing amine or hydrazine groups, to form non-cross-linked/crosslinked polysialylated compounds. The substrates may, for instance, be therapeutically useful drugs, peptides or proteins or drug delivery systems.

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Description

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Claims

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Legal Events

 

• MAFP2021
• I2017
• STCF2017
• P2016
• AS2014
• F2014
• PD2013

Date	Code	Event	Description
May 19, 2021	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
Nov 28, 2017	I	Issuance
Nov 08, 2017	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jul 21, 2016	P	Published
Sep 29, 2014	AS	ASSIGNMENT	free format text: CHANGE OF NAME;ASSIGNOR:VALMET POWER OY;REEL/FRAME:037977/0589 Owner name: VALMET TECHNOLOGIES OY, FINLAND Effective Date: Mar 02, 2016 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HILJANEN, SEPPO;REEL/FRAME:037977/0520 Owner name: VALMET POWER OY, FINLAND Effective Date: Sep 29, 2014
Aug 08, 2014	F	Filing
Aug 19, 2013	PD	Priority Date