| Patents for H03H 9 - Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators (20,116) |
|---|
| 03/22/1977 | US4013982 Piezoelectric crystal unit |
| 03/15/1977 | US4012700 Capacitive adjusting device for a quartz crystal oscillator |
| 03/15/1977 | US4012650 Diced substrate S.A.W. device for bulk wave attenuation |
| 03/15/1977 | US4012648 Process for manufacturing piezoelectric resonators and resonators resulting from such process |
| 03/15/1977 | US4011747 Method and apparatus for acoustic scanning using waves scattered by an acoustic grating |
| 03/08/1977 | US4011526 Temperature compensated surface acoustic wave oscillator |
| 02/08/1977 | US4007433 Elastic surface wave filter |
| 02/08/1977 | US4007432 Electro-mechanical filter having a plurality of tuning forks |
| 02/01/1977 | US4006438 Electro-acoustic surface-wave filter device |
| 02/01/1977 | US4006437 Frequency filter |
| 02/01/1977 | US4006436 Surface acoustic wave delay lines |
| 02/01/1977 | US4006435 Method for fabricating a temperature compensated surface wave device |
| 01/25/1977 | US4005378 Surface acoustic wave filter |
| 01/25/1977 | US4005376 Electronically variable surface acoustic wave phase shifter |
| 01/25/1977 | US4005321 Quartz crystal vibrator mounting |
| 01/25/1977 | US4005318 Elastic wave detector |
| 01/18/1977 | US4004254 Swif with side lobe compensation barrier |
| 01/18/1977 | US4004166 Method for stabilizing the vibration frequency of a tuning fork-type quartz crystal oscillator |
| 01/04/1977 | US4001767 Low diffraction loss-low spurious response LiTaO3 substrate for surface acoustic wave devices |
| 12/21/1976 | US3999153 Acoustic surface wave filter |
| 12/21/1976 | US3999147 Temperature stable surface acoustic wave and oscillator using the device |
| 12/07/1976 | US3996606 Comb filter for video processing |
| 12/07/1976 | US3996535 Microwave bulk acoustic delay device having two transducers on the same surface and method of making same |
| 11/30/1976 | US3995240 Temperature compensated surface wave device |
| 11/09/1976 | US3991330 Acoustic surface wave device using single crystal of Tl3 VS4 or Tl3 NbS4 |
| 11/02/1976 | US3990072 Acoustic residue algebra decoder |
| 11/02/1976 | US3990023 Elastic surface wave device |
| 10/26/1976 | US3988703 Acoustic surface wave device having split-isolated or split-connected multistrip coupler |
| 10/26/1976 | US3988621 Supporting structure for a thickness-shear type quartz oscillator |
| 10/19/1976 | US3987379 Acoustic surface wave filter having combined split-isolated and split-connected coupler |
| 10/19/1976 | US3987378 Surface wave apparatus |
| 10/19/1976 | US3987377 Elastic surface wave propagation device |
| 10/19/1976 | US3987376 Acoustic surface wave device with harmonic coupled transducers |
| 10/12/1976 | US3986151 Electromechanical branching filter |
| 10/12/1976 | US3986150 Reed type electromechanical filter device |
| 10/12/1976 | US3985968 Multiplex data communications using acoustical surface wave filters |
| 10/05/1976 | US3984791 Acoustic surface wave filters having bifurcated members with connecting links |
| 10/05/1976 | US3984790 Electromechanical reed filter |
| 09/28/1976 | US3983518 Filter chain |
| 09/28/1976 | US3983517 Surface acoustic wave multi-channel filter |
| 09/28/1976 | US3983516 Longitudinal-mode mechanical bandpass filter |
| 09/28/1976 | US3983515 Acoustic surface wave devices |
| 09/28/1976 | US3983514 Surface acoustic wave device and method of manufacturing same |
| 09/14/1976 | US3980904 Elastic surface wave device |
| 09/14/1976 | US3980022 Filter device for high acceleration applications |
| 09/07/1976 | US3979702 Apparatus and method for oversampled transducers in acoustic surface wave devices |
| 09/07/1976 | US3979700 Video processor |
| 09/07/1976 | US3979614 DT cut, contour mode piezoelectric crystal |
| 08/31/1976 | US3978437 Surface acoustic wave devices |
| 08/31/1976 | US3978436 Surface acoustic wave device and method of making same |
| 08/17/1976 | US3975698 Fiber acoustic waveguide and system |
| 08/17/1976 | US3975697 Surface acoustic wave devices |
| 08/17/1976 | US3975696 Acoustic storage device for the correlation in particular of two high frequency signals |
| 08/10/1976 | US3974466 Electrochemical reed filter |
| 08/10/1976 | US3974464 Acoustic ridge waveguide |
| 08/10/1976 | US3974463 Elastic surface wave apparatus |
| 08/10/1976 | US3974405 Piezoelectric resonators |
| 08/03/1976 | US3973148 Quartz crystal vibrator unit |
| 07/27/1976 | US3972011 Surface elastic wave electromechanical device |
| 07/20/1976 | US3970970 Multiple acoustically coupled surface acoustic wave resonators |
| 07/13/1976 | US3969641 Quartz crystal vibrator |
| 07/13/1976 | US3969640 Microresonator packaging and tuning |
| 07/06/1976 | US3968462 Electromechanical resonance device and its application to filtering of television signals |
| 07/06/1976 | US3968461 Acoustic surface-wave devices |
| 07/06/1976 | US3968460 Acoustic surface-wave devices |
| 06/29/1976 | US3967221 Surface acoustic wave delay line with bulk wave discrimination |
| 06/22/1976 | US3965446 Surface acoustic wave filter |
| 06/22/1976 | US3965444 Temperature compensated surface acoustic wave devices |
| 06/15/1976 | US3963997 Device for the directive transmission of elastic surface waves and process for making the same |
| 06/01/1976 | US3961293 Multi-resonant surface wave resonator |
| 06/01/1976 | US3961290 Programmable phase coded surface wave device |
| 06/01/1976 | US3961289 Ultrasonic delay material |
| 06/01/1976 | US3961210 Piezoelectric dot resonator driven at a harmonic overtone |
| 05/25/1976 | US3959747 Metallized lithium niobate and method of making |
| 05/25/1976 | US3958863 Tl3 TaS4 and Tl3 TaSe4 crystals and acousto-optical devices |
| 05/18/1976 | US3958230 Arrangement including a piezo-ferroelectric body |
| 05/11/1976 | US3956719 Variable band pass filter circuit |
| 05/11/1976 | US3956718 Crystals having zero temperature coefficients of delay |
| 05/11/1976 | US3956647 Acoustic surface-wave devices using mono crystalline bismuth silicon oxide substrate |
| 05/11/1976 | US3956646 Lithium niobate piezoelectric substrate for use in an elastic surface wave device |
| 05/04/1976 | US3955160 Surface acoustic wave device |
| 05/04/1976 | US3955159 Acoustic surface wave devices |
| 05/04/1976 | US3955158 Microwave delay line |
| 05/04/1976 | US3955109 Crystal resonator of (yzw)θ orientation having a thickness to width ratio of less than one |
| 04/27/1976 | US3953662 Sealed container housing a mechanical filter |
| 04/20/1976 | US3952269 Surface acoustic wave delay line |
| 04/20/1976 | US3952268 Temperature compensated acoustic surface wave device |
| 04/13/1976 | US3950713 Acoustic wave devices |
| 04/06/1976 | US3949326 Electromechanical filter |
| 03/30/1976 | US3947784 Dual-coupled monolithic crystal element for modifying response of filter |
| 03/30/1976 | US3947783 Acoustic surface wave device comprising arrays of parallel metallic strips |
| 03/23/1976 | US3946342 Weighting surface wave filters by withdrawing electrodes |
| 03/23/1976 | US3946338 Acoustic wave devices involving perturbation of acoustic velocity by diffusion of metals |
| 03/23/1976 | US3946257 Quartz crystal vibrator with partial electrodes for harmonic suppression |
| 03/16/1976 | US3944951 Monolithic crystal filter |
| 03/16/1976 | US3944862 X-cut quartz resonator using non overlaping electrodes |
| 03/09/1976 | US3943389 Temperature stabilization of surface acoustic wave substrates |
| 03/02/1976 | US3942140 Method and means for coupling a multiplicity of surface acoustic wave transducers to a single electromagnetic wave transmission line |
| 03/02/1976 | US3942139 Broadband microwave bulk acoustic delay device |
| 03/02/1976 | US3942135 Concatenated surface wave delay line correlator |