Shih; Chien-Fu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Shih; Chien-Fu.The latest application filed is for "varactor tuning for a narrow band filter".
- Shih; Chien-Fu - Sunnyvale CA
- Shih; Chien-Fu - Rohnert Park CA
| Patent | Date |
|---|---|
| Varactor tuning for a narrow band filter having shunt capacitors with different capacitance values Grant 7,738,933 - Shih , et al. June 15, 2 | 2010-06-15 |
| Varactor Tuning For A Narrow Band Filter App 20090079515 - Shih; Chien-Fu ; et al. | 2009-03-26 |
| Varactor tuning for a narrow band filter including an automatically controlled tuning system Grant 7,317,364 - Shih , et al. January 8, 2 | 2008-01-08 |
| Varactor tuning for a narrow band filter App 20060250196 - Shih; Chien-Fu ; et al. | 2006-11-09 |
| Varactor tuning for a narrow band filter Grant 7,117,025 - Shih , et al. October 3, 2 | 2006-10-03 |
| Varactor tuning for a narrow band filter App 20030058061 - Shih, Chien-Fu ; et al. | 2003-03-27 |
| Microstrip filter cross-coupling control apparatus and method Grant 6,529,750 - Zhang , et al. March 4, 2 | 2003-03-04 |
| Frequency dependent inductor apparatus and method for a narrow-band filter Grant 6,438,394 - Zhang , et al. August 20, 2 | 2002-08-20 |
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