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

Patent Owner(s)

Patent Owner	Address
COVESTRO DEUTSCHLAND AG	51373 LEVERKUSEN

International Classification(s)

• C12P:FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESI....
• C12N:MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chen, Kequan	Nanjing, CN	4	0
Guo, Ruijing	Pudong, Shanghai, CN	10	18
Li, Kang	Nanjing, CN	180	1648
Lin, Jen-Chieh	Singapur, SG	53	130
Qian, Ying	Nanjing, CN	34	211
Qiu, Chenggang	Nanjing, CN	2	0
Tao, Sha	Nanjing, CN	9	17

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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	Jan 14, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jan 14, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jan 14, 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: 2022/0220,455

MODIFIED MONOOXYGENASES FOR THE MANUFACTURE OF HYDROXYLATED HYDROCARBONS BASED ON SUBSTITUTION OF AMINO ACIDS BY ALANINE

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