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

Patent Owner(s)

Patent Owner	Address
RTX CORPORATION	10 FARM SPRINGS ROAD FARMINGTON CT 06032

International Classification(s)

• F01D:NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hall, Theodore W	Berlin, US	15	193
McCaffrey, Michael G	Windsor, US	219	2556
Mott, Zachary	Glastonbury, US	5	22

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jul 30, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jul 30, 2029

Fee	Large entity fee	small entity fee	micro entity fee
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
January 30, 2018	US,9879557,B2   US9879557B2	GRANTED PATENT AS SECOND PUBLICATION
February 18, 2016	US,20160047258,A1   US20160047258A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9879557

Inner stage turbine seal for gas turbine engine

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