| 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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| 01/05/1999 | US5857060 Noise suppression in PWM-driven DC motor |
| 01/05/1999 | US5856770 Filter with ferroelectric-ferromagnetic composite materials |
| 12/22/1998 | US5851341 Method for manufacturing bead filter using an epoxy resin gel |
| 11/25/1998 | CN1200011A Noise absorber |
| 11/17/1998 | US5838877 Noise suppression in PWM-driven DC motor |
| 11/17/1998 | US5838216 Common-mode EMI filter |
| 11/10/1998 | US5833481 Multi-tap distribution apparatus |
| 11/04/1998 | EP0784417B1 Plasma accelerator with closed electron drift |
| 11/04/1998 | CN1198269A Device for absorption of electrical noise |
| 10/15/1998 | WO1998045921A1 Paired multi-layered dielectric independent passive component architecture resulting in differential and common mode filtering with surge protection in one integrated package |
| 10/13/1998 | US5822174 Multilayer feedthrough capacitor |
| 10/13/1998 | US5821846 High current ferrite electromagnetic interference suppressor and associated method |
| 09/29/1998 | US5815439 Integrated circuit memory system |
| 09/17/1998 | DE19811072A1 Interference absorber or damper for mounting on cable of electronic device e.g personal computer, video game device |
| 09/11/1998 | WO1998039830A1 Electromagnetic impulse suppression circuit |
| 09/11/1998 | CA2281945A1 Electromagnetic impulse suppression circuit |
| 09/08/1998 | US5805032 Electrical filter for attenuating oscillations in AC mains |
| 09/03/1998 | DE19807382A1 Noise suppression filter for electrical apparatus with transformer |
| 09/01/1998 | US5801597 Printed-circuit board-mountable ferrite EMI filter |
| 08/25/1998 | US5798602 Plasma accelerator with closed electron drift |
| 08/25/1998 | US5798483 Grounding device for an image forming machine |
| 08/12/1998 | EP0858251A1 Printed-circuit board-mountable ferrite EMI filter |
| 08/04/1998 | US5789999 Distributed lossy capacitive circuit element with two resistive layers |
| 07/29/1998 | EP0855756A1 EMP-arrester |
| 07/29/1998 | EP0809879B1 Method and device for filtering and damping conducted interference caused by ultimate consumers |
| 07/29/1998 | CN1188971A Suppressor case with rocking ferrite |
| 07/15/1998 | EP0852845A1 Device for the absorption of electrical noise |
| 07/14/1998 | US5781088 Lumped-constant resonator structure and method for adjusting it |
| 07/14/1998 | US5781082 Power supply filter for preventing noise signal from entering power supply circuit |
| 07/02/1998 | DE19724491A1 Microphone for electric hearing aid |
| 07/01/1998 | EP0780034A4 Lumped element filters |
| 06/30/1998 | US5774028 Surface mount line filter with solder gas discharge paths in the core |
| 06/24/1998 | EP0849878A2 Improvements in or relating to integrated circuits |
| 06/23/1998 | US5770984 Filter formed with a one piece U-shape ferrite core |
| 06/16/1998 | US5767757 Electrically variable R/C network and method |
| 06/09/1998 | US5764125 Suppressor case with rocking ferrite |
| 05/20/1998 | EP0842572A1 Noise suppression in pwm-driven dc motor |
| 04/28/1998 | US5745523 Multi-mode signal processing |
| 04/28/1998 | US5745328 Electromagnetic impulse suppression curcuit |
| 04/22/1998 | EP0673576A4 Apparatus for and method of speech digitizing. |
| 04/14/1998 | US5739732 AC noise spike suppression circuit with parallel back-to-back fast diodes |
| 04/09/1998 | DE19639880A1 Koaxiales Durchführungsfilter Coaxial feedthrough filter |
| 04/02/1998 | WO1998013931A1 Coaxial bushing filter |
| 04/02/1998 | WO1998013930A1 Coaxial bushing filter |
| 03/12/1998 | DE19636816A1 Cable arrangement for motor vehicle electrics |
| 03/10/1998 | US5727023 Apparatus for and method of speech digitizing |
| 03/10/1998 | US5726611 EMC filter for a balanced multi-wired telecommunication line with bifilar windings |
| 02/26/1998 | DE19730109A1 Noise attenuator for signals fed to digital processor |
| 02/04/1998 | CN1172413A Electronic parts |
| 01/29/1998 | DE19730108A1 Electromagnetic noise suppression device e.g. for computer signal cable |
| 01/07/1998 | CN1036957C Inductor element for magnetic interference/radio-frequency interference filter |
| 12/30/1997 | US5701665 Pi signal frequency filter method of manufacture |
| 12/11/1997 | WO1997047083A1 Common mode filter and filter/connector combination |
| 12/11/1997 | CA2257163A1 Common mode filter and filter/connector combination |
| 12/03/1997 | EP0809879A1 Method and device for filtering and damping conducted interference caused by ultimate consumers |
| 11/26/1997 | EP0614583A4 Integrated emi/rfi filter magnetics. |
| 11/06/1997 | WO1997041640A1 Stabilization circuits for multiple digital bits |
| 10/29/1997 | EP0772841A3 Geometric figures |
| 10/22/1997 | EP0801851A1 Damped emi input filter for power factor correction circuits |
| 10/16/1997 | DE19615994A1 Electronic device for processing and/or transmission of signals via printed circuit board |
| 10/15/1997 | CN1162373A Quadrature modulator with integrated distributed RC filters |
| 10/01/1997 | EP0798851A1 Electronic component |
| 09/30/1997 | US5673220 Random access memory device |
| 08/06/1997 | EP0702857A4 High temperature superconductor lumped elements and circuit |
| 07/22/1997 | US5650908 Surge arrestor for RF devices |
| 07/22/1997 | US5650759 Filtered feedthrough assembly having a mounted chip capacitor for medical implantable devices and method of manufacture therefor |
| 07/22/1997 | CA2125988C Integrated common mode and differential mode inductor device |
| 07/16/1997 | EP0784417A1 Plasma accelerator with closed electron drift |
| 07/10/1997 | WO1997024803A1 Noise removing circuit |
| 07/02/1997 | EP0781467A2 Quadrature modulator with integrated distributed rc filters |
| 06/25/1997 | EP0780034A1 Lumped element filters |
| 06/19/1997 | DE19547969C1 Electrical filter for reducing sub-harmonics or intermediate harmonics |
| 06/04/1997 | EP0784417A4 Plasma accelerator with closed electron drift |
| 06/04/1997 | EP0777325A2 Grounding device for use in an image forming machine |
| 05/22/1997 | DE19542685A1 Radio interference filter for electronically controlled apparatus |
| 05/14/1997 | EP0772841A2 Geometric figures |
| 05/13/1997 | US5629655 Integrated distributed RC low-pass filters |
| 04/10/1997 | WO1997013323A1 Branching device |
| 04/10/1997 | WO1997013321A1 Device for the absorption of electrical noise |
| 04/08/1997 | US5619080 Line filter for reducing AC harmonics |
| 04/08/1997 | US5618777 High temperature superconductor lumped elements and circuit therefrom |
| 04/03/1997 | DE19536155A1 Einrichtung zum Absorbieren des elektrischen Rauschens Means for absorbing the electrical noise |
| 04/01/1997 | US5616539 High temperature superconductor lumped element band-reject filters |
| 03/18/1997 | US5612656 Resonator with spiral-shaped pattern electrodes |
| 03/12/1997 | EP0762448A2 Multilayer feedthrough capacitor |
| 03/11/1997 | US5610565 Composite LC device with a ground electrode not formed on the inductor parts |
| 02/26/1997 | CN1143819A Laminated by-pass capacitor |
| 02/13/1997 | WO1997005716A1 Noise suppression in pwm-driven dc motor |
| 02/11/1997 | US5602516 Asymmetrical notch filter |
| 01/28/1997 | US5597328 Multi-pole connector with filter configuration |
| 01/07/1997 | US5592134 EMI filter with a ceramic material having a chemical reaction inhibiting component |
| 01/01/1997 | CN2243973Y high efficiency high frequency hot pressing machine |
| 12/18/1996 | EP0613596B1 High and medium power radioelectric filter |
| 12/12/1996 | DE19519989A1 Figuren Figures |
| 12/05/1996 | WO1996038806A2 Geometric figures |
| 12/05/1996 | CA2198148A1 Geometric figures |
| 10/30/1996 | EP0740316A1 Current-compensated radio interference suppression choke with increased leakage inductance |
| 09/25/1996 | EP0733261A1 Attenuator especially for audio-signals |
| 09/19/1996 | DE19608219A1 Störschutzeinrichtung Störschutzeinrichtung |
| 09/03/1996 | CA2170784A1 Noise suppressor |