Tsvetanka Zheleva

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Chapel Hill, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods of fabricating gallium nitride semiconductor layers by late...
- Patent number 7,195,993
- Issue date Mar 27, 2007
- North Carolina State University
- Tsvetanka Zheleva
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Second gallium nitride layers that extend into trenches in first ga...
- Patent number 6,897,483
- Issue date May 24, 2005
- North Carolina State University
- Tsvetanka Zheleva
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Methods of fabricating gallium nitride semiconductor layers by late...
- Patent number 6,602,763
- Issue date Aug 5, 2003
- North Carolina State University
- Robert F. Davis
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gallium nitride semiconductor structures including lateral gallium...
- Patent number 6,570,192
- Issue date May 27, 2003
- North Carolina State University
- Robert F. Davis
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Methods of fabricating gallium nitride semiconductor layers by late...
- Patent number 6,265,289
- Issue date Jul 24, 2001
- North Carolina State University
- Tsvetanka Zheleva
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gallium nitride semiconductor structures including a lateral galliu...
- Patent number 6,051,849
- Issue date Apr 18, 2000
- North Carolina State University
- Robert F. Davis
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Methods of fabricating gallium nitride semiconductor layers by late...
- Publication number 20050009304
- Publication date Jan 13, 2005
- Tsvetanka Zheleva
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Methods of fabricating gallium nitride semiconductor layers by late...
- Publication number 20030194828
- Publication date Oct 16, 2003
- Tsvetanka Zheleva
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Methods of fabricating gallium nitride semiconductor layers by late...
- Publication number 20010039102
- Publication date Nov 8, 2001
- Tsvetanka Zheleva
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Methods of fabricating gallium nitride semiconductor layers by late...
- Publication number 20010007242
- Publication date Jul 12, 2001
- Robert F. Davis
- H01 - BASIC ELECTRIC ELEMENTS