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

Patent Owner(s)

Patent Owner	Address
VARIAN MEDICAL SYSTEMS INC	3100 HANSEN WAY PALO ALTO CA 94304

International Classification(s)

• A61N:ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY;....

• 1999 Application Filing Year
• A61N Class
• 935 Applications Filed
• 584 Patents Issued To-Date
• 62.46 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Day, Mary E	Los Altos, CA	5	68
# of filed Patents : 5 Total Citations : 68
Delfino, Michelangelo	Los Altos, CA	20	305
# of filed Patents : 20 Total Citations : 305

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Patent Citation Ranking

• 0 Citation Count
• A61N Class

• 0 % this patent is cited more than
• 22 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: 6626815

Method and apparatus creating a radioactive layer on a receiving substrate for in vivo implantation

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Abstract

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An apparatus and method of forming a radioactive stent having a radioactive layer. A solution containing a radioactive isotope depositing substance in solution is provided and placed into contact with the stent or any other substrate material capable of receiving the radioactive isotope. The radioactive isotope is deposited on the stent or substrate material. Preferably a phosphorous isotope is used and the solution is polymerized forming polymer chains containing the radioactive isotope. In this embodiment, the phosphorous is bonded with the substrate material in a phosphorous-oxygen-phosphorous network.

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Description

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Claims

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Legal Events

 

• STCH2011
• FP2011
• LAPS2011
• REMI2011
• AS2008
• FPAY2007
• I2003
• AS2003
• F1999
• PD1997
• AS1997

Date	Code	Event	Description
Oct 31, 2011	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Sep 30, 2011	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Sep 30, 2011
Sep 30, 2011	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
May 09, 2011	REMI	MAINTENANCE FEE REMINDER MAILED
Sep 26, 2008	AS	ASSIGNMENT	free format text: MERGER;ASSIGNOR:VARIAN MEDICAL SYSTEMS TECHNOLOGIES, INC.;REEL/FRAME:021669/0848 Owner name: VARIAN MEDICAL SYSTEMS, INC., CALIFORNIA Effective Date: Sep 26, 2008
Mar 30, 2007	FPAY	FEE PAYMENT	year of fee payment: 4
Sep 30, 2003	I	Issuance
Sep 25, 2003	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VARIAN MEDICAL SYSTEMS, INC.;REEL/FRAME:014059/0646 Owner name: VARIAN MEDICAL SYSTEMS TECHNOLOGIES, INC., CALIFOR Effective Date: Sep 25, 2003
Dec 09, 1999	F	Filing
Dec 10, 1997	PD	Priority Date
Dec 10, 1997	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DELFINO, MICHELANGELO;DAY, MARY E.;REEL/FRAME:010462/0772 Owner name: VARIAN ASSOCIATES, INC., CALIFORNIA Effective Date: Dec 10, 1997