David R. WALKER

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Ottawa, CA

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Patents Grantslast 30 patents

Information Patent Grant
Flat-top tunable filter
- Patent number 9,874,698
- Issue date Jan 23, 2018
- Lumentum Operations LLC
- Barthelemy Fondeur
- G02 - OPTICS
Information Patent Grant
Characterizing a frequency channel in an optical network
- Patent number 8,731,400
- Issue date May 20, 2014
- JDS Uniphase Corporation
- Jinxi Shen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical E-field modulation using a directly driven laser
- Patent number 7,680,420
- Issue date Mar 16, 2010
- Nortel Networks Limited
- Dave Walker
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reduction of dispersion effects in optical transmission fibre systems
- Patent number 6,556,744
- Issue date Apr 29, 2003
- Nortel Networks Limited
- Robert K. Brimacombe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Laser clamping assembly and method
- Patent number 6,385,220
- Issue date May 7, 2002
- GSI Lumonics Inc.
- Robert John Dwayne Miller
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Laser machining of a workpiece
- Patent number 5,854,805
- Issue date Dec 29, 1998
- Lumonics Inc.
- John Reid
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Stabilization of the output energy of a pulsed solid state laser
- Patent number 5,812,569
- Issue date Sep 22, 1998
- Lumonics, Inc.
- David R. Walker
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
FLAT-TOP TUNABLE FILTER
- Publication number 20170168241
- Publication date Jun 15, 2017
- Lumentum Operations LLC
- Barthelemy FONDEUR
- G02 - OPTICS
Information Patent Application
FLAT-TOP TUNABLE FILTER
- Publication number 20140293393
- Publication date Oct 2, 2014
- Barthelemy FONDEUR
- G02 - OPTICS
Information Patent Application
CHARACTERIZING A FREQUENCY CHANNEL IN AN OPTICAL NETWORK
- Publication number 20130266313
- Publication date Oct 10, 2013
- Jinxi Shen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for reducing dispersion slope in optical trans...
- Publication number 20020114597
- Publication date Aug 22, 2002
- NORTEL NETWORKS LIMITED
- Robert K. Brimacombe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE