Robert Hartzell

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Emerald Hills, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus to provide electromagnetic interference shield...
- Patent number 7,837,503
- Issue date Nov 23, 2010
- Opnext, Inc.
- Robert Hartzell
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Electronic interface for long reach optical transceiver
- Patent number 7,657,185
- Issue date Feb 2, 2010
- Opnext, Inc.
- Robert Hartzell
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Receiver optical sub-assembly with diagnostic signal
- Patent number 6,922,231
- Issue date Jul 26, 2005
- Opnext, Inc.
- Xiangzhong Wang
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Method and Apparatus to Provide Electromagnetic Interference Shield...
- Publication number 20090247010
- Publication date Oct 1, 2009
- Robert Hartzell
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electronic interface for long reach optical transceiver
- Publication number 20050175350
- Publication date Aug 11, 2005
- Robert Hartzell
- H04 - ELECTRIC COMMUNICATION TECHNIQUE