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

Patent Owner(s)

Patent Owner	Address
ALLIANCE FOR SUSTAINABLE ENERGY LLC	C/O NATIONAL RENEWABLE ENERGY LABORATORY 15013 DENVER WEST PARKWAY GOLDEN CO 80401

International Classification(s)

• C08H:DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
• C12P:FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESI....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
CHEN, Xiaowen	Littleton, US	14	14
ELANDER, Richard T	Evergreen, US	13	654
HIMMEL, Michael E	Littleton, US	38	346
TUCKER, Melvin P	Lakewood, US	12	337

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Jul 9, 2028
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jul 9, 2032
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jul 9, 2036

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

Full Text

US Patent Application No: 2025/0011,547

PRETREATMENT OF LIGNOCELLULOSE USING TWO STAGE ALKALI AND MECHANICAL REFINING PROCESSES

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