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Patent Assignment Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:015017/0001   Pages: 7
Recorded: 08/20/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 45
1
Patent #:
5606439
Issue Dt:
02/25/1997
Application #:
08629523
Filing Dt:
04/10/1996
Title:
TUNABLE ADD/DROP OPTICAL FILTER
2
Patent #:
5724165
Issue Dt:
03/03/1998
Application #:
08685150
Filing Dt:
07/23/1996
Title:
FAULT-TOLERANT OPTICAL ROUTING SWITCH
3
Patent #:
5867291
Issue Dt:
02/02/1999
Application #:
08739424
Filing Dt:
10/29/1996
Title:
PROGRAMMABLE WAVELENGTH ROUTER
4
Patent #:
5694233
Issue Dt:
12/02/1997
Application #:
08780291
Filing Dt:
01/08/1997
Title:
SWITCHABLE WAVELENGTH ROUTER
5
Patent #:
5963291
Issue Dt:
10/05/1999
Application #:
08897353
Filing Dt:
07/21/1997
Title:
LOW DIELECTRIC ANISOTROPY LIQUID CRYSTAL OPTICAL ATTENUATOR USING POLARIZATION MODULATION AND A FEEDBACK CONTROLLER
6
Patent #:
6005697
Issue Dt:
12/21/1999
Application #:
08907551
Filing Dt:
08/08/1997
Title:
MULTI-WAVELENGTH CROSS-CONNECT OPTICAL NETWORK
7
Patent #:
5946116
Issue Dt:
08/31/1999
Application #:
08979525
Filing Dt:
11/26/1997
Title:
1 X N DIGITALLY PROGRAMMABLE OPTICAL ROUTING SWITCH
8
Patent #:
6141076
Issue Dt:
10/31/2000
Application #:
08980447
Filing Dt:
11/28/1997
Title:
SPATIAL LIGHT MODULATORS CONSTRUCTED FROM FERROELECTRIC LIQUID CRYSTAL DEVICES WITH A TWISTED STRUCTURE
9
Patent #:
5912748
Issue Dt:
06/15/1999
Application #:
08982978
Filing Dt:
12/02/1997
Title:
SWITCHABLE WAVELENGTH ROUTER
10
Patent #:
6510004
Issue Dt:
01/21/2003
Application #:
09020706
Filing Dt:
02/09/1998
Title:
TEMPERATURE INSENSITIVE POLARIZATION FILTER
11
Patent #:
6166838
Issue Dt:
12/26/2000
Application #:
09036202
Filing Dt:
03/06/1998
Title:
OPTICAL ADD/DROP WAVELENGTH SWITCH
12
Patent #:
6208442
Issue Dt:
03/27/2001
Application #:
09048557
Filing Dt:
03/26/1998
Title:
PROGRAMMABLE OPTICAL ADD/DROP MULTIPLEXER
13
Patent #:
6134358
Issue Dt:
10/17/2000
Application #:
09141396
Filing Dt:
08/27/1998
Title:
N X N SWITCH ARRAY WITH REDUCED COMPONENTS
14
Patent #:
6285478
Issue Dt:
09/04/2001
Application #:
09156211
Filing Dt:
09/17/1998
Title:
PROGRAMMABLE OPTICAL ADD/DROP DEVICE
15
Patent #:
6115155
Issue Dt:
09/05/2000
Application #:
09190078
Filing Dt:
11/12/1998
Title:
SYSTEM FOR DEALING WITH FAULTS IN AN OPTICAL LINK
16
Patent #:
6118912
Issue Dt:
09/12/2000
Application #:
09227064
Filing Dt:
01/05/1999
Title:
APPARATUS FOR HOLDING AND TUNING A THIN-FILM OPTICAL ASSEMBLY
17
Patent #:
5978116
Issue Dt:
11/02/1999
Application #:
09240550
Filing Dt:
01/29/1999
Title:
PROGRAMMABLE WAVELENGTH ROUTER
18
Patent #:
6545783
Issue Dt:
04/08/2003
Application #:
09273920
Filing Dt:
03/22/1999
Title:
OPTICAL WAVELENGTH ADD/DROP MULTIPLEXER
19
Patent #:
6163393
Issue Dt:
12/19/2000
Application #:
09274270
Filing Dt:
03/22/1999
Title:
METHOD AND APPARATUS FOR WAVELENGTH MULTIPEXING / DEMULTIPLEXING
20
Patent #:
6519060
Issue Dt:
02/11/2003
Application #:
09326201
Filing Dt:
06/04/1999
Title:
SYNCHRONOUS OPTICAL NETWORK IN FREQUENCY DOMAIN
21
Patent #:
6160665
Issue Dt:
12/12/2000
Application #:
09326247
Filing Dt:
06/04/1999
Title:
HIGH EXTINCTION RATIO POLARIZATION BEAMSPLITTER
22
Patent #:
6208444
Issue Dt:
03/27/2001
Application #:
09391733
Filing Dt:
09/08/1999
Title:
APPARATUS FOR WAVELENGTH DEMULTIPLEXING USING A MULTI-CAVITY ETALON
23
Patent #:
6137606
Issue Dt:
10/24/2000
Application #:
09411935
Filing Dt:
10/04/1999
Title:
OPTICAL WAVELENGTH ROUTER
24
Patent #:
6275312
Issue Dt:
08/14/2001
Application #:
09416089
Filing Dt:
10/12/1999
Title:
OPTICAL ROUTING SWITCH
25
Patent #:
6353467
Issue Dt:
03/05/2002
Application #:
09417600
Filing Dt:
10/14/1999
Title:
ACUTE TWIST NEMATIC (ATN) LIQUID CRYSTAL DEVICE FOR OPTICAL COMMUNICATION APPLICATIONS
26
Patent #:
6201593
Issue Dt:
03/13/2001
Application #:
09418220
Filing Dt:
10/14/1999
Title:
OPTICAL COMMUNICATION SYSTEM HAVING A LIQUID CRYSTAL ROUTING SWITCH
27
Patent #:
6175432
Issue Dt:
01/16/2001
Application #:
09447091
Filing Dt:
11/22/1999
Title:
MULTI-WAVELENGTH CROSS-CONNECT OPTICAL NETWORK
28
Patent #:
6396609
Issue Dt:
05/28/2002
Application #:
09469336
Filing Dt:
12/20/1999
Title:
DISPERSION COMPENSATION FOR OPTICAL SYSTEMS
29
Patent #:
6452702
Issue Dt:
09/17/2002
Application #:
09546645
Filing Dt:
04/10/2000
Title:
N X M DIGITALLY PROGRAMMABLE OPTICAL ROUTING SWITCH
30
Patent #:
6243200
Issue Dt:
06/05/2001
Application #:
09547812
Filing Dt:
04/11/2000
Title:
Optical wavelength router based on polarization interferometer
31
Patent #:
6426816
Issue Dt:
07/30/2002
Application #:
09614782
Filing Dt:
07/12/2000
Title:
WIDE TRANSMISSION OPTICAL COMB FILTER WITH WIDE PASS BAND AND WIDE STOP BAND
32
Patent #:
6519022
Issue Dt:
02/11/2003
Application #:
09621634
Filing Dt:
07/21/2000
Title:
OPTICAL ROUTING SWITCH USING SYMMETRIC LIQUID CRYSTAL CELLS
33
Patent #:
6545779
Issue Dt:
04/08/2003
Application #:
09625780
Filing Dt:
07/26/2000
Title:
SYSTEM FOR DEALING WITH FAULTS IN AN OPTICAL LINK
34
Patent #:
6337934
Issue Dt:
01/08/2002
Application #:
09627952
Filing Dt:
07/28/2000
Title:
N X N switch array with polarization displacer
35
Patent #:
6288807
Issue Dt:
09/11/2001
Application #:
09659524
Filing Dt:
09/12/2000
Title:
OPTICAL WAVELENGTH ROUTER
36
Patent #:
6600582
Issue Dt:
07/29/2003
Application #:
09715603
Filing Dt:
11/17/2000
Title:
OPTICAL ADD/DROP WAVELENGTH SWITCH
37
Patent #:
6498680
Issue Dt:
12/24/2002
Application #:
09717050
Filing Dt:
11/20/2000
Title:
COMPACT TUNABLE OPTICAL WAVELENGTH INTERLEAVER
38
Patent #:
6559992
Issue Dt:
05/06/2003
Application #:
09728271
Filing Dt:
12/01/2000
Publication #:
US20020067487
Pub Dt:
06/06/2002
Title:
ADJUSTABLE CHROMATIC DISPERSION COMPENSATION
39
Patent #:
6429962
Issue Dt:
08/06/2002
Application #:
09730650
Filing Dt:
12/05/2000
Publication #:
US20020093725
Pub Dt:
07/18/2002
Title:
DYNAMIC GAIN EQUALIZER FOR OPTICAL AMPLIFIERS
40
Patent #:
6512615
Issue Dt:
01/28/2003
Application #:
09741270
Filing Dt:
12/18/2000
Publication #:
US20020030866
Pub Dt:
03/14/2002
Title:
METHOD AND APPARATUS FOR WAVELENGTH MULTIPLEXING/DEMULTIPLEXING
41
Patent #:
6690846
Issue Dt:
02/10/2004
Application #:
09798659
Filing Dt:
03/01/2001
Publication #:
US20020122614
Pub Dt:
09/05/2002
Title:
DISPERSION-COMPENSATED OPTICAL WAVELENGTH ROUTER
42
Patent #:
6621632
Issue Dt:
09/16/2003
Application #:
09840524
Filing Dt:
04/23/2001
Publication #:
US20020154411
Pub Dt:
10/24/2002
Title:
OPTICAL INTERFEROMETER FOR DEMULTIPLEXING AN OPTICAL SIGNAL
43
Patent #:
6552833
Issue Dt:
04/22/2003
Application #:
09864538
Filing Dt:
05/23/2001
Publication #:
US20010038479
Pub Dt:
11/08/2001
Title:
PROGRAMMABLE OPTICAL ADD/DROP MULTIPLEXER
44
Patent #:
6455841
Issue Dt:
09/24/2002
Application #:
09874641
Filing Dt:
06/05/2001
Publication #:
US20010042821
Pub Dt:
11/22/2001
Title:
OPTICAL WAVELENGTH ROUTER BASED ON POLARIZATION INTERFEROMETER
45
Patent #:
6515786
Issue Dt:
02/04/2003
Application #:
09922989
Filing Dt:
08/03/2001
Publication #:
US20030030881
Pub Dt:
02/13/2003
Title:
BANDWIDTH VARIABLE WAVELENGTH ROUTER AND METHOD OF OPERATION
Assignor
1
CHORUM TECHNOLOGIES LP
Exec Dt:
08/11/2004
Assignee
1
EC-OPTICS TECHNOLOGY INC.
3RD FL., NO. 12, LANE 121, LI-DER RD
PEITO DISTRICT
TAIPEI, TAIWAN
Correspondence name and address
SAMIR A. BHAVSAR
BAKER BOTTS L.L.P.
2001 ROSS AVENUE, SUITE 600
DALLAS, TX 75201-2980

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