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

Patent Owner(s)

Patent Owner	Address
SOUTHWEST RESEARCH INSTITUTE	6220 CULEBRA ROAD SAN ANTONIO TX 78238-5166

International Classification(s)

• C01C:AMMONIA; CYANOGEN; COMPOUNDS THEREOF
• C01B:NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
• C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS
• B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Erwin, Jimell	San Antonio, US	7	75
Hartmann, Michael P	San Antonio, US	6	76

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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	Jun 6, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jun 6, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jun 6, 2034

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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
December 06, 2022	US,11518685,B2   US11518685B2	GRANTED PATENT AS SECOND PUBLICATION
August 05, 2021	US,20210238047,A1   US20210238047A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11518685

Conversion of ammonium nitrate into useful products

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