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

Patent Owner(s)

Patent Owner	Address
BEIJING VDJBIO CO LTD	B102 NO 5 KAITUO RD HAIDIAN DISTRICT BEIJING 100085

International Classification(s)

• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
• A61P:THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDI....
• C07K:PEPTIDES

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
CHENG, Jianwei	Beijing, CN	6	6
LI, Ziqiang	Beijing, CN	14	46
MA, Rong	Beijing, CN	36	139
SUN, Yiping	Beijing, CN	32	64
TIAN, Xinsheng	Beijing, CN	5	0
ZHANG, Jun	Beijing, CN	1152	7034
ZHANG, Xiaorui	Beijing, CN	18	6
ZHAO, Tingting	Beijing, CN	53	64

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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	Oct 10, 2028
7.5 Year Payment	$3600.00	$1800.00	$900.00	Oct 10, 2032
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Oct 10, 2036

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: 2025/0115,653

FUSION PROTEIN OF INTERLEUKIN 2 AND APPLICATION THEREOF IN IBD

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