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Karen Liu
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Stanford, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
TFP optical transition device and method
Patent number
11,435,603
Issue date
Sep 6, 2022
LIGHTWAVE LOGIC INC.
Frederick J. Leonberger
G02 - OPTICS
Information
Patent Grant
Dynamic optical add-drop multiplexers and wavelength-routing networ...
Patent number
6,208,443
Issue date
Mar 27, 2001
International Business Machines Corporation
Karen Liu
G02 - OPTICS
Information
Patent Grant
Dynamic optical add-drop multiplexers and wavelength-routing networ...
Patent number
5,953,141
Issue date
Sep 14, 1999
International Business Machines Corporation
Karen Liu
G02 - OPTICS
Information
Patent Grant
Upgradable modular wavelength division multiplexer
Patent number
5,930,016
Issue date
Jul 27, 1999
Tellabs Operations, Inc.
Stuart Douglas Brorson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical wavelength division multiplexer for coupling to data source...
Patent number
5,825,949
Issue date
Oct 20, 1998
International Business Machines Corporation
Michael M. Choy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength sorter and its application to planarized dynamic wavelen...
Patent number
5,745,612
Issue date
Apr 28, 1998
International Business Machines Corporation
Weyl-Kuo Wang
G02 - OPTICS
Information
Patent Grant
Optical wavelength division multiplexer for high speed, protocol-in...
Patent number
5,487,120
Issue date
Jan 23, 1996
International Business Machines Corporation
Michael M. Choy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Interconnections having improved signal-to-noise ratio
Patent number
5,357,363
Issue date
Oct 18, 1994
International Business Machines Corporation
Chung-Sheng Li
G02 - OPTICS
Information
Patent Grant
Double-pass tunable fabry-perot optical filter
Patent number
5,039,201
Issue date
Aug 13, 1991
International Business Machines Corporation
Karen Liu
G01 - MEASURING TESTING
Information
Patent Grant
Broadband optical fiber laser
Patent number
4,964,131
Issue date
Oct 16, 1990
The Board of Trustees of the Leland Standford Junior University
Karen Liu
G01 - MEASURING TESTING
Information
Patent Grant
Superfluorescent broadband fiber laser source
Patent number
4,938,556
Issue date
Jul 3, 1990
The Board of Trustees of the Leland Stanford Junior University
Michel J. F. Digonnet
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Polarizing apparatus and method utilizing an optical fiber
Patent number
4,721,352
Issue date
Jan 26, 1988
The Board of Trustees of the Leland Stanford Junior University
Wayne V Sorin
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
HIGH-CAPACITY OPTICAL INPUT/OUTPUT FOR DATA PROCESSORS
Publication number
20240036254
Publication date
Feb 1, 2024
Nubis Communications, Inc.
Peter Johannes Winzer
G02 - OPTICS
Information
Patent Application
COMMUNICATION SYSTEMS HAVING PLUGGABLE MODULES
Publication number
20230375793
Publication date
Nov 23, 2023
Nubis Communications, Inc.
Peter Johannes Winzer
G02 - OPTICS
Information
Patent Application
TFP OPTICAL TRANSITION DEVICE AND METHOD
Publication number
20220113566
Publication date
Apr 14, 2022
Lightwave Logic Inc.
Frederick J. Leonberger
G02 - OPTICS