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

Patent Owner(s)

Patent Owner	Address
TAKASAGO INTERNATIONAL CORPORATION	TOKYO 144-8721

International Classification(s)

• C07D:HETEROCYCLIC COMPOUNDS
• C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS
• B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....

• 2014 Application Filing Year
• C07D Class
• 5203 Applications Filed
• 4627 Patents Issued To-Date
• 88.93 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Nara, Hideki	Kanagawa, JP	31	61
# of filed Patents : 31 Total Citations : 61
Ogata, Osamu	Kanagawa, JP	13	61
# of filed Patents : 13 Total Citations : 61

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• 0 Citation Count
• C07D Class

• 0 % this patent is cited more than
• 8 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	Mar 5, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Mar 5, 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
September 05, 2017	US,9751827,B2   US9751827B2	GRANTED PATENT AS SECOND PUBLICATION
January 14, 2016	US,20160009632,A1   US20160009632A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9751827

Method for alkylation of amines

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Abstract

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The present invention provides a simple, efficient, and industrially advantageous method for the alkylation of amines. The present invention relates to a production method for N-alkylamines whereby an amine is reacted with an alcohol in the presence of a ruthenium complex represented by general formula (1): RuXY(CO)(L) (wherein X and Y can be the same or different and represent a monovalent anionic ligand, and L represents a tridentate aminodiphosphine ligand).

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Description

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Claims

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Legal Events

 

• MAFP2025
• MAFP2020
• I2017
• STCF2017
• P2016
• AS2015
• AS2015
• F2014
• PD2013

Date	Code	Event	Description
Feb 20, 2025	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8
Sep 25, 2020	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
Sep 05, 2017	I	Issuance
Aug 16, 2017	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jan 14, 2016	P	Published
Aug 20, 2015	AS	ASSIGNMENT	free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNOR INFORMATION PREVIOUSLY RECORDED ON REEL 036488 FRAME 0458. ASSIGNOR(S) HEREBY CONFIRMS THE CORRECT NAME OF THE SECOND ASSIGNOR IS HIDEKI NARA.;ASSIGNORS:OGATA, OSAMU;NARA, HIDEKI;REEL/FRAME:036965/0318 Owner name: TAKASAGO INTERNATIONAL CORPORATION, JAPAN Effective Date: Aug 20, 2015
Aug 20, 2015	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OGATA, OSAMU;NAKAMURA, MASANOBU;REEL/FRAME:036488/0458 Owner name: TAKASAGO INTERNATIONAL CORPORATION, JAPAN Effective Date: Aug 20, 2015
Jan 21, 2014	F	Filing
Mar 04, 2013	PD	Priority Date