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

Patent Owner(s)

Patent Owner	Address
COVESTRO INTELLECTUAL PROPERTY GMBH & CO KG	51373 LEVERKUSEN

International Classification(s)

• B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Gu, Yongming	Shanghai, CN	12	11
Li, Zhijiang	Shanghai, CN	20	41
Sun, Guobin	Shanghai, CN	26	116
Wu, Di	Shanghai, CN	491	2758
Zheng, Ian	Shanghai, CN	3	0

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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	Apr 20, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Apr 20, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Apr 20, 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

Full Text

US Patent Application No: 2022/0332,059

METHOD FOR PRODUCING A SPAR CAP, TRAILING EDGE AND/OR OTHER REINFORCED LAMINATE STRUCTURAL PARTS OF WIND TURBINE BLADE

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