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

Patent Owner(s)

Patent Owner	Address
TRAN BO	CHICAGO IL

International Classification(s)

• C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
• C05F:ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05....
• C07F:ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CO....
• C05D:INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C....
• C01D:COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, ....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Tran, Bo	Chicago, US	7	22

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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 27, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jun 27, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jun 27, 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 27, 2022	US,11535636,B2   US11535636B2	GRANTED PATENT AS SECOND PUBLICATION
May 23, 2019	US,20190152994,A1   US20190152994A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11535636

Potassium mixtures compositions and methods

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