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Class Information
Number: 333/145
Name: Wave transmission lines and networks > Coupling networks > Delay lines including elastic bulk wave propagation means > Nonuniform propagation path
Description: Subject matter in which the structure for transmitting mechanical waves is tapered, stepped, or includes a hollow, composite, anisotropic, or nonhomogeneous propagation path.

Patents under this class:

Patent Number Title Of Patent Date Issued
8651230 High capacity ultrasonic reactor system Feb. 18, 2014
7173471 High frequency switching circuit and semiconductor device Feb. 6, 2007
7156201 Ultrasonic rod waveguide-radiator Jan. 2, 2007
6885491 Diffraction-optical component, illumination system and exposure system comprising such a diffraction-optical component as well as an exposure method employing such an exposure system Apr. 26, 2005
6248422 Shadow sculpted thin films Jun. 19, 2001
5241287 Acoustic waveguides having a varying velocity distribution with reduced trailing echoes Aug. 31, 1993
4821004 Method for the elimination of spurious echos in electro-acoustic delay lines using bulk waves and delay line applying this method Apr. 11, 1989
4815802 Surface acoustic wave generating apparatus including a positive feedback-type generator Mar. 28, 1989
4743870 Longitudinal mode fiber acoustic waveguide with solid core and solid cladding May. 10, 1988
4609890 Bulk acoustic wave signal processing devices Sep. 2, 1986
4554519 Magnetostatic wave delay line Nov. 19, 1985
4400669 Magnetostatic wave delay line having improved group delay linearity Aug. 23, 1983
4328472 Acoustic guided wave devices May. 4, 1982
4316161 Wideband low triple transit delay line Feb. 16, 1982
4305159 Compressive receiver Dec. 8, 1981
4112396 Echo annexation device Sep. 5, 1978
3974464 Acoustic ridge waveguide Aug. 10, 1976

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