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

Patent Owner(s)

Patent Owner	Address
DARPA	3701 NORTH FAIRFAX DRIVE OFFICE OF GENERAL COUNSEL ARLINGTON VA 22203

International Classification(s)

• G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Berkey, George Edward	Pine City, NY	23	221
# of filed Patents : 23 Total Citations : 221
Chen, Xin	Corning, NY	816	7998
# of filed Patents : 816 Total Citations : 7998
Koh, Joohyun	Painted Post, NY	27	554
# of filed Patents : 27 Total Citations : 554
Li, Ming-Jun	Horseheads, NY	376	5535
# of filed Patents : 376 Total Citations : 5535
Nolan, Daniel Aloysius	Corning, NY	101	2118
# of filed Patents : 101 Total Citations : 2118
Walton, Donnell Thaddeus	Painted Post, NY	17	181
# of filed Patents : 17 Total Citations : 181
Wang, Ji	Painted Post, NY	174	1378
# of filed Patents : 174 Total Citations : 1378
Zenteno, Luis Alberto	Painted Post, NY	21	441
# of filed Patents : 21 Total Citations : 441

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Patent Citation Ranking

• 9 Citation Count
• G02B Class

• 2.11 % this patent is cited more than
• 18 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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
April 10, 2007	US,7203407,B2   US7203407B2	GRANTED PATENT AS SECOND PUBLICATION
April 27, 2006	US,20060088261,A1   US20060088261A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7203407

Rare earth doped single polarization double clad optical fiber and a method for making such fiber

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Abstract

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An optical fiber, comprising: (i) a rare earth doped silica based elongated core with a first refractive index (n.sub.1) with an aspect ratio of 1:5 to 1; (ii) a silica based moat abutting and at least substantially surrounding the core, the moat having a refractive index n.sub.2, wherein n.sub.2n.sub.3; and n.sub.3>n.sub.2; (iv) a silica based outer cladding surrounding said inner cladding, the outer cladding having a fourth refractive index (n.sub.4), such that n.sub.4

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Description

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Claims

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Legal Events

 

• MAFP2018
• FPAY2014
• FPAY2010
• RF2009
• I2007
• AS2007
• STCF2007
• P2006
• F2005
• AS2005
• PD2004

Date	Code	Event	Description
Sep 13, 2018	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 12
Oct 10, 2014	FPAY	FEE PAYMENT	year of fee payment: 8
Oct 12, 2010	FPAY	FEE PAYMENT	year of fee payment: 4
Mar 10, 2009	RF	REISSUE APPLICATION FILED	Effective Date: Mar 10, 2009
Apr 10, 2007	I	Issuance
Mar 26, 2007	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CORNING INCORPORATED;REEL/FRAME:019151/0762 Owner name: DARPA, VIRGINIA Effective Date: Mar 26, 2007
Mar 21, 2007	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Apr 27, 2006	P	Published
Feb 14, 2005	F	Filing
Feb 14, 2005	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BERKEY, GEORGE EDWARD;CHEN, XIN;KOH, JOOHYUN;AND OTHERS;REEL/FRAME:016287/0945;SIGNING DATES FROM 20050203 TO 20050208 Owner name: CORNING INCORPORATED, NEW YORK
Oct 21, 2004	PD	Priority Date