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

Patent Owner(s)

Patent Owner	Address
SEA-TWIRL AB	C/O DANIEL EHRNBERG RICHERTSGATAN 18 GOTEBORG S-412 60

International Classification(s)

• F03B:MACHINES OR ENGINES FOR LIQUIDS
• F03D:WIND MOTORS
• F01D:NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ehrnberg, Daniel	Gothenburg, SE	12	31

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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 25, 2028

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 25, 2017	US,9631503,B2   US9631503B2	GRANTED PATENT AS SECOND PUBLICATION
October 31, 2013	US,20130287572,A1   US20130287572A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9631503

Dynamic turbine system

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