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

Patent Owner(s)

Patent Owner	Address
GRANT PRIDECO INC	10353 RICHMOND AVENUE HOUSTON TX 77042

International Classification(s)

• C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS
• F26B:DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQU....
• B01D:SEPARATION

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Moen, Kolbjørn	Oslo, NO	2	7
# of filed Patents : 2 Total Citations : 7
Vale, Jon Even	Gjettum, NO	2	5
# of filed Patents : 2 Total Citations : 5
Vingelven, Geir	Høvik, NO	7	39
# of filed Patents : 7 Total Citations : 39

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Patent Citation Ranking

• 2 Citation Count
• C07C Class

• 34.61 % this patent is cited more than
• 10 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	Oct 14, 2026

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
April 14, 2015	US,9006500,B2   US9006500B2	GRANTED PATENT AS SECOND PUBLICATION
September 11, 2014	US,20140256990,A1   US20140256990A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9512454

Methods for improvement of enzymatic hydrolysis of lignocellullosic material

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Abstract

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The present invention relates to a method of enzymatic hydrolysis of a lignocellulosic material, comprising the steps of: a) pretreating the lignocellulosic material to obtain a slurry having a pH of less than 6; b) adding NaOH, Ca(OH)₂ and/or CaO to the slurry to increase its pH to at least 8, said addition being carried out at a slurry temperature of at least 60° C.; c) reducing the pH of the slurry to below 7; and optionally cooling the slurry from step b) to a temperature below 60° C.; and d) adding hydrolytic enzymes to the slurry from c) and allowing the slurry to hydrolyze wherein no washing of the slurry is performed prior to step d).

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Description

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Claims

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