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

Patent Owner(s)

• ROLLS-ROYCE LIMITED

International Classification(s)

• B64D:EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SU....
• B64C:AEROPLANES; HELICOPTERS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Deńning, Ralph Murch	Bristol, GB	1	11
Woodward, Clifford Stanley	Bristol, GB	1	11

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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

Full Text

US Patent No: 7823838

Aircraft with improved lift

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