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

Patent Owner(s)

Patent Owner	Address
GFBIOCHEMICALS IP ASSETS B V	6163 JT GELEEN

International Classification(s)

• C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Brunelle, Daniel Joseph	Burnt Hill, US	87	1258
Bunning, Donald L	South Charleston, US	15	484
Kapicak, Louis A	Cross Lanes, US	21	160
Leibig, Cora M	Maple Grove, US	20	107
Louwagie, Andrew J	Golden Valley, US	4	21
Mullen, Brian D	Delano, US	61	514
Rodwogin, Marc David	Minneapolis, US	3	8
Shirtum, Robert Page	Sonora, US	8	109
Strand, Steven R	San Diego, US	4	13
Tjosaas, Matthew John	Minneapolis, US	2	8
Yontz, Dorie Janine	Bloomington, US	5	15

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Patent Citation Ranking

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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 14, 2027
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Oct 14, 2031

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 14, 2020	US,10618864,B2   US10618864B2	GRANTED PATENT AS SECOND PUBLICATION
January 17, 2019	US,20190016658,A1   US20190016658A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 2019/0016,658

PROCESS TO PREPARE LEVULINIC ACID

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