| Patents for H03H 1 - Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network (2,020) |
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| 02/11/2009 | CN201194383Y Network filter |
| 01/29/2009 | US20090027136 Active electromagnetic interference filter circuit for suppressing a line conducted interference signal |
| 01/29/2009 | DE102008034121A1 Delay line for use in test signal-generating device i.e. test signal-generator, has passive elements provided in signal line, where sections of signal line has different electrical lengths and impedances between pairs of adjacent elements |
| 01/28/2009 | CN201188603Y Network filter flake |
| 01/21/2009 | EP2016676A2 Feeding arrangement for an ultrasonic device |
| 01/21/2009 | CN100454714C Load stack filter capable of suppressing radio frequency interference for domestic electric washing machine |
| 01/15/2009 | DE102007032644A1 Leitungsabschlussglied und Vorrichtung zur berührungslosen Leistungs- und Datenübertragung Line termination element and device for contactless power and data transmission |
| 01/15/2009 | DE102007029889A1 Network filter i.e. radio interference filter, for e.g. power converter, has low-pass circuit enclosed by sealing compound such that only network-and current-inverter-sided connections are projected |
| 01/14/2009 | CN201181930Y Dual protection type high-frequency pulse wave filter |
| 01/08/2009 | DE102007031510A1 Elektrisches Vielschichtbauelement Electrical multilayer component |
| 12/31/2008 | EP1602089B1 Resonant frequency tag and method for controlling tag frequency |
| 12/30/2008 | US7471137 Frequency-independent voltage divider |
| 12/24/2008 | WO2008155433A1 Circuit for radiofrequency devices applicable to living tissues and device containing same |
| 12/24/2008 | EP2007009A2 Planar emi filter |
| 12/24/2008 | EP2005587A2 Method and apparatus for tuning resistors and capacitors |
| 12/24/2008 | CN101330284A Apparatus for correcting time constant and correlation method thereof |
| 12/24/2008 | CN100446389C Filter apparatus and power converter to which the filter apparatus is connected |
| 12/24/2008 | CA2690871A1 Circuit for radiofrequency devices applicable to living tissues and device containing same |
| 12/17/2008 | CN101326693A High voltage DC filter |
| 12/10/2008 | EP1116326B1 Conductive member |
| 12/04/2008 | DE19655266B4 Elektronisches Bauelement Electronic component |
| 12/03/2008 | CN101316096A Wave filter and housing thereof |
| 12/03/2008 | CN100441072C Electronic device for supplying power source and noise filter which having high-efficient noise reducing |
| 12/02/2008 | US7459995 Noise suppression circuit |
| 11/26/2008 | EP1222725B8 Universal multi-functional common conductive shield structure for electrical circuitry and energy conditioning |
| 11/18/2008 | US7453343 Thin-film type common-mode choke coil |
| 11/13/2008 | DE10238690B4 Anordnung zur Realisierung einer Sperrimpedanz Arrangement for realizing a blocking impedance |
| 11/05/2008 | CN201146483Y Environment protection type iron shell filter |
| 10/29/2008 | EP1346087A4 Energy pathway arrangement |
| 10/29/2008 | EP1342398A4 Energy pathway arrangements for energy conditioning |
| 10/29/2008 | EP1334543A4 Energy pathway arrangement |
| 10/29/2008 | EP1334542A4 Amalgam of shielding and shielded energy pathways and other elements for single or multiple circuitries with common reference node |
| 10/29/2008 | EP1277278A4 Isolating energy conditioning shield assembly |
| 10/29/2008 | EP1264377A4 Passive electrostatic shielding structure for electrical circuitry and energy conditioning with outer partial-shielded energy pathways |
| 10/28/2008 | US7443647 Paired multi-layered dielectric independent passive component architecture resulting in differential and common mode filtering with surge protection in one integrated package |
| 10/16/2008 | US20080253054 Multi-Functional Energy Conditioner |
| 10/15/2008 | CN100426428C Transmission line type quiet filter |
| 10/08/2008 | CN201130925Y Minitype temperature compensation attenuator |
| 10/01/2008 | CN201127018Y Filter bayonet winding bracket |
| 09/25/2008 | DE10248477B4 LC-Hochpaßfilter-Schaltungsvorrichtung, laminierte LC-Hochpaßfiltervorrichtung, Multiplexer und Funkkommunikationseinrichtung LC high-pass filter circuit device, laminated LC-pass filter, Multiplexer and radio communication device |
| 09/23/2008 | US7427904 Ultra-high-frequency notch filter having an inductance set by selecting a conductor width |
| 09/18/2008 | DE102007012049A1 Elektrisches Bauelement Electrical component |
| 09/16/2008 | US7425757 Semiconductor power module |
| 09/10/2008 | EP1665526A4 Saw identification tag discrimination methods |
| 09/10/2008 | CN201113931Y Modularized filter |
| 09/10/2008 | CN201113930Y Modularized filter |
| 09/10/2008 | CN201113929Y Detachable type filter |
| 09/09/2008 | US7423860 Multi-functional energy conditioner |
| 08/27/2008 | EP1962421A1 Calibration circuit for calibrating an adjustable capacitance of an integrated circuit having a time constant depending on said capacitance |
| 08/27/2008 | EP1962420A1 High-precision calibration circuit calibrating an adjustable capacitance of an integrated circuit having a time constant depending on said capacitance |
| 08/27/2008 | EP1961092A1 Hvdc filter |
| 08/27/2008 | CN101252806A Printed circuit board |
| 08/27/2008 | CN100414836C Conductive parts |
| 08/26/2008 | US7418213 Transimpedance amplifier with integrated filtering and reduced parasitic capacitance |
| 08/21/2008 | WO2008098628A1 Attenuation element |
| 08/14/2008 | WO2008097758A1 Hybrid filter for audio switching amplifier |
| 08/14/2008 | US20080191815 Filter element |
| 08/06/2008 | CN100408365C Electromagnetic interference filter |
| 07/24/2008 | WO2008086626A1 Systems, methods, and apparatus for electrical filters |
| 07/23/2008 | EP1945297A2 Tank filters placed in series with the lead wires or circuits of active medical devices to enhance mri compatibility |
| 07/22/2008 | US7403083 Multiple resonance filter |
| 07/22/2008 | US7402990 Reduction of energization transients in a three phase power system |
| 07/09/2008 | CN101217265A An iron shell filter of energy saving and environmental protection type and the corresponding preparation method |
| 07/03/2008 | US20080160681 Manufacture including shield structure |
| 07/03/2008 | US20080158746 Universal Energy Conditioning Interposer with Circuit Architecture |
| 06/24/2008 | US7391201 Regulated analog switch |
| 06/18/2008 | EP1933285A2 Method of making a series of resonant frequency tags |
| 06/18/2008 | EP1222725B1 Universal multi-functional common conductive shield structure for electrical circuitry and energy conditioning |
| 06/03/2008 | US7382216 Noise filter mounting structure |
| 05/29/2008 | US20080122776 Data driver with multilevel voltage generating circuit, and liquid crystal display apparatus |
| 05/27/2008 | US7378943 Noise suppressing circuit |
| 05/22/2008 | US20080116996 Signal Detector |
| 05/21/2008 | CN201063589Y Filtering module group |
| 05/21/2008 | CN201063588Y Plate type common mode filter |
| 05/20/2008 | US7376385 Repeaters sharing a common medium for communications |
| 04/30/2008 | EP1916676A1 Noise filter |
| 04/30/2008 | DE102006051523A1 Electrical signal converting method, involves storing determined inflection, highest and/or lowest points, signal values of time frames, and sampling values, and generating another signal based on stored sample values and points |
| 04/30/2008 | CN201054568Y A ground circuit for restraining electromagnetic interference from power |
| 04/17/2008 | DE102007032374A1 Filter mit einstellbarer Induktivität, Tapeverteilungssubstrat und Anzeigepanelaufbau Filter with adjustable inductance, tape distribution substrate and display panel set-up |
| 04/16/2008 | EP1912329A2 Inductance device and noise filter comprising the same |
| 04/15/2008 | US7358800 Programmable/tunable active RC filter |
| 04/09/2008 | EP1909388A1 Common-mode filter and variable-speed drive comprising the same |
| 04/08/2008 | US7355493 Filter element |
| 04/02/2008 | CN100378874C Method for preparing slice type network resistor |
| 04/01/2008 | US7353481 Computer implemented method for designing a semiconductor integrated circuit and a semiconductor integrated circuit |
| 03/27/2008 | WO2008034643A1 MULTIPLE ORDER LOW PASS FILTER FOR AN xDSL SPLITTER |
| 03/26/2008 | EP1903674A1 Multiple order low pass filter for an xDSL splitter |
| 03/20/2008 | WO2007127441A3 Valve metal electromagnetic interference filter |
| 03/13/2008 | DE202007017577U1 Modulisierter Wellenfilter Modulisierter wave filter |
| 03/13/2008 | DE202007017576U1 Modulisierter Wellenfilter Modulisierter wave filter |
| 03/12/2008 | CN101141119A Signal coupling apparatus and transmitter including signal coupling apparatus |
| 03/12/2008 | CN100375279C Decouping network in integrated circuit |
| 03/06/2008 | WO2008025424A1 A device for suppressing high frequency current or/and voltage components |
| 03/06/2008 | DE102004001859B4 Induktives Bauelement mit zwei Wicklungen und Herstellverfahren Inductive component with two windings and manufacturing |
| 03/05/2008 | EP1895550A1 A device for suppressing high frequency current or/and voltage components |
| 03/05/2008 | CN101136617A Multilayer filter |
| 03/04/2008 | US7339446 Tunable resonator with MEMS element |
| 02/28/2008 | US20080049376 Non-ferromagnetic tank filters in lead wires of active implantable medical devices to enhance mri compatibility |
| 02/27/2008 | EP1537656A4 Improved electromagnetic interference filter |
| 02/21/2008 | WO2008020029A1 Low-leakage emc filter |