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                    US and European Patents


US Patents:
9,252,470 Ultra-Broadband Diplexer Using Waveguide and Planar Transmission Lines National Instruments Corporation, Austin, TX. Feb. 2, 2016
4,988,959 YIG Tuned Oscillator Using Composite Feedback Avantek, Inc. Santa Clara, CA. Jan. 29, 1991
4,755,772 Switchable Microwave Oscillator Avantek, Inc. Santa Clara, CA. July 5, 1988
4,737,737 Transmission Injection-Locked Dielectric Resonator Oscillator Avantek, Inc. Santa Clara, CA. April 12, 1988
4,733,199 Multi-Frequency Dielectric Resonator Oscillator Using Parallel Feedback Avantek, Inc. Santa Clara, CA. March 22,1987
4,649,354 Switchable Multi-Frequency Dielectric Resonator Oscillator Avantek, Inc. Santa Clara, CA. March 10,1987
4,484,156 Transistor Microwave Oscillators Centre National de la Recherche Scientifique (C.N.R.S.), France November 20,1984
French Patents:
CNRS 81/05447 Oscillateur Microondes a transistor a effet de champ
et a deux resonateurs dielectriques
U.E.R. des Sciences,
Univ. de Limoges, France
March 1981
CNRS 81/ Oscillateur Microondes a transistor a deux resonateurs
dielectriques et a trois sorties
U.E.R. des Sciences,
Univ. de Limoges, France
September 1981