Kefeng Liu

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Round Rock, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Matching network hybrid electro-magnetic compatibility absorber
- Patent number 6,738,008
- Issue date May 18, 2004
- ETS-Lindgren L.P.
- Kefeng Liu
- G01 - MEASURING TESTING
Information Patent Grant
Shielded enclosure for testing wireless communication devices
- Patent number 6,657,214
- Issue date Dec 2, 2003
- EMC Test Systems, L.P.
- Michael D. Foegelle
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Diagonal dual-polarized broadband horn antenna
- Patent number 6,489,931
- Issue date Dec 3, 2002
- EMC Test Systems, L.P.
- Kefeng Liu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
MATCHING NETWORK HYBRID ELECTRO-MAGNETIC COMPATIBILITY ABSORBER
- Publication number 20040090358
- Publication date May 13, 2004
- Kefeng Liu
- G01 - MEASURING TESTING
Information Patent Application
Diagonal dual-polarized broadband horn antenna
- Publication number 20020080081
- Publication date Jun 27, 2002
- Kefeng Liu
- H01 - BASIC ELECTRIC ELEMENTS