Frank E. Peterkin

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Norfolk, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Discharge device having cathode with micro hollow array
- Patent number 6,518,692
- Issue date Feb 11, 2003
- Old Dominion University
- Karl H. Schoenbach
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Discharge device having cathode with micro hollow array
- Patent number 6,346,770
- Issue date Feb 12, 2002
- Osram Sylvania, Inc.
- Karl H. Schoenbach
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Discharge device having cathode with micro hollow array
- Patent number 6,072,273
- Issue date Jun 6, 2000
- Osram Sylvania Inc.
- Karl H. Schoenbach
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Discharge device having cathode with micro hollow array
- Patent number 5,939,829
- Issue date Aug 17, 1999
- Osram Sylvania, Inc.
- Karl H. Schoenbach
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Discharge device having cathode with micro hollow array
- Patent number 5,686,789
- Issue date Nov 11, 1997
- Osram Sylvania Inc.
- Karl H. Schoenbach
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Discharge device having cathode with micro hollow array
- Publication number 20020036461
- Publication date Mar 28, 2002
- Osram Sylvania Inc.
- Karl H. Schoenbach
- H01 - BASIC ELECTRIC ELEMENTS