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Country	kind	publication No.	Filing Date	Type	Sub-Type
CA	C	CA1325859	Dec 02, 1988	Patent	Grant
Type : Patent Sub-Type : Grant
PATENT (PUBLISHED FROM 16.10.1990 ONWARDS)		POLYMER SOLUTION TREATMENT PROCESS		Jan 04, 1994
EP	B1	EP0325198	Jan 17, 1989	Patent	Grant
Type : Patent Sub-Type : Grant
Patent		POLYMER SOLUTION TREATMENT PROCESS		Mar 31, 1993

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

Patent Owner(s)

Patent Owner	Address
POLYSAR LIMITED	A CORP OF CANADA SARNIA ONTARIO

International Classification(s)

• C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....

• 1989 Application Filing Year
• C08J Class
• 304 Applications Filed
• 2 Patents Issued To-Date
• 0.66 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bradford, William G	Sarnia, CA	3	12
# of filed Patents : 3 Total Citations : 12
Osman, Akhtar	Sarnia, CA	25	173
# of filed Patents : 25 Total Citations : 173

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Patent Citation Ranking

• 1 Citation Count
• C08J Class

• 0.59 % this patent is cited more than
• 32 Age

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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: 9598718

Quantification of misfolded TNFR2:Fc

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Abstract

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The present invention is directed to methods for determining the relative amount of wrongly disulphide bridged TNFR2:Fc in a sample of TNFR2:Fc, a fusion protein which is used in a variety of therapeutic applications. In addition, the invention pertains to a method for purifying TNFR2:Fc using said method for determining the percentage of wrongly disulphide bridged TNFR2:Fc, and to TNFR2:Fc compositions obtained thereby.

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Description

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Claims

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