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

Patent Owner(s)

Patent Owner	Address
GRIMALDI DEVELOPMENT AB	131 26 NACKA STRAND

International Classification(s)

• B04B:CENTRIFUGES
• F01M:LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUB....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Birk, Maximilian	Neu-Ulm, DE	1	2
Erdmann, Christoph	Ulm, DE	22	83
Polednak, Petr	Neu-Ulm, DE	3	4
Zitarosa, Francesco	Illertissen, DE	15	33

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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	Nov 30, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Nov 30, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Nov 30, 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
May 30, 2023	US,11660610,B2   US11660610B2	GRANTED PATENT AS SECOND PUBLICATION
July 25, 2019	US,20190224690,A1   US20190224690A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 2019/0224,690

TURBINE AND LIQUID SEPARATOR HAVING SUCH A TURBINE

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