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

Patent Owner(s)

Patent Owner	Address
DSM SINOCHEM PHARMACEUTICALS NETHERLANDS B V	2613 AX DELFT

International Classification(s)

• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
• C07D:HETEROCYCLIC COMPOUNDS

• 2008 Application Filing Year
• A61K Class
• 9711 Applications Filed
• 5862 Patents Issued To-Date
• 60.37 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Boesten, Wilhelmus Hubertus Joseph	Sittard, NL	10	37
# of filed Patents : 10 Total Citations : 37
De, Lange Ben	Munstergeleen, NL	28	8
# of filed Patents : 28 Total Citations : 8
Heemskerk, Dennis	Schinveld, NL	14	6
# of filed Patents : 14 Total Citations : 6
Sarakinos, Georgios	Munich, DE	9	355
# of filed Patents : 9 Total Citations : 355

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Patent Citation Ranking

• 3 Citation Count
• A61K Class

• 14.18 % this patent is cited more than
• 12 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
April 16, 2013	US,8420683,B2   US8420683B2	GRANTED PATENT AS SECOND PUBLICATION
July 08, 2010	US,20100174092,A1   US20100174092A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8420683

5 substituted hydantoins

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Abstract

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The present invention relates to 5-substituted hydantoins, a process for the preparation of 5-substituted hydantoins and the use of 5-substituted hydantoins in the preparation of enantiomerically enriched α-amino acids. Furthermore, the present invention relates to the preparation of pharmaceutically active products such as perindopril and ramipril using the novel 5-substituted hydantoins.

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Description

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Claims

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