| 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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| 04/14/1994 | WO1994008417A1 Radio frequency interference filter |
| 04/14/1994 | CA2124203A1 Radio frequency interference filter |
| 03/09/1994 | EP0585469A1 Hybrid coupler |
| 02/23/1994 | EP0583809A1 Ferroelectric-ferromagnetic composite materials |
| 02/15/1994 | US5287074 Electric parts for shielding electromagnetic noise |
| 02/01/1994 | US5283462 Semiconductors |
| 01/11/1994 | US5278525 Electrical filter with multiple filter sections |
| 01/06/1994 | WO1994000913A1 High and medium power radioelectric filter |
| 01/05/1994 | EP0576782A1 Electrical filter with multiple filter sections |
| 12/15/1993 | EP0182913B1 Method of adjusting electronic circuits |
| 12/08/1993 | EP0572825A1 Housing for electrical capacitive filter |
| 11/09/1993 | CA2021754C Method of making an electrical filter connector |
| 09/30/1993 | WO1993019527A1 Hybrid coupler |
| 09/07/1993 | US5243308 Combined differential-mode and common-mode noise filter |
| 08/17/1993 | US5236376 Connector |
| 08/05/1993 | DE4302650A1 Electrical noise current absorber for antenna cable of electronic equipment - comprises two-part hinged casing whose closure compresses resilient pointed grippers into contact with enclosed conductor |
| 07/22/1993 | WO1993014565A1 Device for filtering interference radiofrequency emissions, especially in medical magnetic resonance imaging |
| 07/13/1993 | US5227746 Laminate lc filter having combined condenser and coil functions |
| 07/13/1993 | US5227745 Line filter assembly |
| 06/22/1993 | US5222149 Damping terminator for high fidelity audio signals |
| 06/15/1993 | US5220298 Integrated circuit having a built-in noise filter |
| 04/27/1993 | US5206620 Sintered ferrite body, chip inductor, and composite LC part |
| 04/13/1993 | US5202656 Frequency shifting tuning process and filter structure |
| 04/06/1993 | US5200720 Emi bead core filter, process and apparatus thereof |
| 03/30/1993 | US5197170 Method of producing an LC composite part and an LC network part |
| 03/23/1993 | US5195232 Method of making electromagnetic interference filters |
| 02/23/1993 | US5189593 Integrated distributed resistive-capacitive network |
| 02/23/1993 | US5189592 Electrical filter with resiliently mounted planar dielectric devices |
| 02/16/1993 | US5187456 Line filter |
| 02/02/1993 | US5184045 Magnetron for a microwave oven having a pair of choke coils wound around a core in the same directions |
| 01/19/1993 | US5181000 Digital interference filter for audio systems |
| 12/22/1992 | US5173671 Monolithic lumped element networks |
| 12/22/1992 | US5173670 Designing method of π type LC filter |
| 12/08/1992 | CA1311288C Ferrite toroid isolator |
| 12/01/1992 | US5168252 Line filter having a magnetic compound with a plurality of filter elements sealed therein |
| 11/19/1992 | EP0514316A2 An LC-circuit and a method of producing said LC-circuit |
| 11/10/1992 | US5162772 Ferrite suppressor case with internal locking system |
| 11/10/1992 | CA1309847C Tag and method of making same |
| 10/27/1992 | US5159300 Noise filter comprising a monolithic laminated ceramic varistor |
| 10/21/1992 | EP0509059A1 Integrated electromagnetic interference filter |
| 10/14/1992 | EP0508336A1 Capacitor arrangement |
| 10/13/1992 | US5155457 Line filter assembly |
| 10/07/1992 | EP0507681A2 Capacitor array utilizing a substrate and discoidal capacitors |
| 10/06/1992 | US5153540 Capacitor array utilizing a substrate and discoidal capacitors |
| 10/02/1992 | CA2064148A1 Capacitor array utilizing a substrate and discoidal capacitors |
| 09/22/1992 | US5150087 Electrical signal filter and method for manufacture of electrical signal filter internal circuit board |
| 08/25/1992 | US5142430 Power line filter and surge protection circuit components and circuits |
| 07/29/1992 | EP0496395A2 An LC filter |
| 07/21/1992 | US5132650 Lc noise filter |
| 06/25/1992 | DE4127432A1 Bead filter for electromagnetic interference redn., for automation - comprises epoxy] coating with aluminium@ and silicon@ for high impedance, mechanical strength, uniformity, and signal=to=noise ratio on PCB |
| 05/12/1992 | US5113164 Superconductors with switchable magnetic domains |
| 05/05/1992 | US5111169 Lc noise filter |
| 04/28/1992 | US5109206 Balanced low-pass common mode filter |
| 04/21/1992 | CA1299256C Ac line filter |
| 04/14/1992 | US5105332 Capacitor network for coaxial connector |
| 03/24/1992 | US5098528 Method for making an integrated type lc component |
| 02/26/1992 | EP0472317A1 Sub power plane to provide EMC filtering for VLSI devices |
| 02/25/1992 | US5091707 Coaxial cable shield filter |
| 02/13/1992 | DE4025159A1 Pi-filter for HF interference suppression - has dry capacitors with esp. polyester or polypropylene foil windings of specified resistance |
| 01/21/1992 | US5083101 Integrated electromagnetic interference filter |
| 01/15/1992 | EP0466556A1 Process for making an integrated LC component |
| 12/31/1991 | US5077543 Balanced low-pass common mode filter |
| 12/27/1991 | EP0462562A2 Line filter assembly |
| 11/26/1991 | US5068631 Sub power plane to provide EMC filtering for VLSI devices |
| 10/23/1991 | EP0452992A2 Electric noise absorber |
| 10/23/1991 | EP0452643A1 Feedthrough filter resp. capacitor |
| 10/03/1991 | WO1991015046A1 Power line filter and surge protection circuit components and circuits |
| 09/24/1991 | US5051712 LC filter |
| 08/13/1991 | US5040094 3-terminal capacitor |
| 08/13/1991 | US5039965 Radio frequency filter feedthrough structure for multilayer circuit boards |
| 08/13/1991 | US5039964 Inductance and capacitance noise filter |
| 07/30/1991 | US5036301 Filter apparatus |
| 07/23/1991 | US5034709 Composite electronic component |
| 07/11/1991 | WO1991010285A1 Integrated electromagnetic interference filter |
| 07/09/1991 | US5030933 Noise filter |
| 06/26/1991 | EP0433443A1 High current feed-through capacitor |
| 06/18/1991 | CA1285022C Filter unit with electrochemical capacitors for a static power converter |
| 06/11/1991 | US5023578 Filter array having a plurality of capacitance elements |
| 06/11/1991 | US5023577 Feedthrough radio frequency filter |
| 06/11/1991 | CA1284771C Device for attenuating noise in electrical apparatus |
| 05/29/1991 | EP0428907A1 LC Noise filter |
| 05/07/1991 | US5014026 Suppressing radio-frequency interferences |
| 04/11/1991 | DE3932846A1 Radio interference filter - has symmetrical conductor system with centre strip and side branches embedded in resinous material which absorbs HF energy |
| 04/11/1991 | DE3932559A1 RF noise mains filter unit for AC inverter system - has compact housing for RC elements with locators for connectors |
| 03/26/1991 | US5003278 Ferrite suppressor case with retaining fingers |
| 02/07/1991 | WO1991001565A1 High current feed-through capacitor |
| 01/30/1991 | EP0410768A1 Method of making an electrical filter connector |
| 01/08/1991 | US4983934 Noise filter |
| 11/20/1990 | US4972167 Electric noise absorber |
| 11/07/1990 | EP0396516A1 Filter device for suppressing radio-frequency interferences on transmission lines |
| 10/25/1990 | DE4011294A1 Laminated noise and interference LC filter - has specified ratio of power inductances in regions forming capacitances |
| 10/24/1990 | EP0393644A2 LC noise filter |
| 10/03/1990 | EP0390600A2 Filter apparatus |
| 10/02/1990 | US4961059 Combined RFI rejection and intergrating two-section filter |
| 09/26/1990 | EP0388985A2 LC noise filter |
| 09/20/1990 | DE3908902A1 Device for suppressing line-conducted noise signals in an electronic module |
| 09/11/1990 | US4956114 Borosilicate glass having improved mechanical strength and electromagnetic properties |
| 08/07/1990 | CA1272513A1 Filtering of electromagnetic interference from a digital signal |
| 06/19/1990 | US4935842 High current feed-through capacitor |
| 06/19/1990 | US4935710 High frequency filter for electric instruments |