| Patents for H01H 36 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding (3,817) |
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| 12/05/1990 | EP0400625A2 Laminated films |
| 12/05/1990 | EP0400453A2 Switching device |
| 12/05/1990 | CN2067032U Contactless micro movement switch |
| 11/30/1990 | CA2017981A1 Laminated films |
| 11/27/1990 | CA1277001C Proximity sensing device |
| 11/27/1990 | CA1276958C Controller for electric devices directed to use in bath |
| 11/21/1990 | CN2066193U Wide distance magnetic control switch |
| 11/14/1990 | EP0397338A1 Liquid float gauge assembly |
| 11/06/1990 | WO1990013879A1 Location marker |
| 11/06/1990 | CA2054194A1 Location marker |
| 10/23/1990 | US4965555 Arrangement for accurately installing a replaceable reed switch of a device for monitoring the liquid level in a tank |
| 10/23/1990 | US4965417 Foot-operated control |
| 10/10/1990 | EP0391126A1 Electronic proximity switch |
| 10/10/1990 | CN2063686U Magnetic control differential pressure switch |
| 10/02/1990 | US4959997 Magnetic float for magnetic sensor |
| 09/19/1990 | CN2062491U 液位保护器 Level of protection |
| 09/12/1990 | EP0386942A2 Accelerometer with dualmagnet sensing mass |
| 09/12/1990 | CN2062112U Explosion insulated magnetic starter remote control button |
| 09/11/1990 | US4955231 Liquid float gage assembly |
| 09/09/1990 | CA2010625A1 Accelerometer with dual-magnet sensing mass |
| 09/04/1990 | US4954924 Switch for high magnetic field |
| 09/04/1990 | CA1273533A1 Fluid flow indicator |
| 08/29/1990 | EP0383823A1 Transmitter with magnetic zero/span actuator. |
| 08/28/1990 | US4951506 Rolling contact ohmic resistance position sensor |
| 08/08/1990 | EP0380763A1 Switch for motor vehicles |
| 07/31/1990 | US4945340 Tamper-resistant magnetic security system |
| 07/24/1990 | US4943791 Wide gap magnetic reed switch and method for manufacture of same |
| 07/11/1990 | EP0376949A1 Electric or electronic control keyboard. |
| 07/03/1990 | US4939320 Self-setting switch-actuating assembly and method |
| 06/28/1990 | WO1990007126A1 Means and method for measuring inductance |
| 06/13/1990 | EP0372909A2 Master cylinder hydraulic reservoirs |
| 06/12/1990 | US4933515 Accelerometer with dual-magnet sensing mass |
| 05/15/1990 | US4926015 Liquid level sensor having a retained base plate |
| 05/15/1990 | US4924703 Tank-level alarm control system |
| 05/09/1990 | CN2057028U 磁开关 Magnetic switch |
| 04/10/1990 | EP0256004A4 Proximity sensing device. |
| 03/28/1990 | EP0360263A2 Self-diagnosing proximity switch |
| 03/27/1990 | US4912291 Compact proximity switch arrangement |
| 03/22/1990 | WO1990003040A1 Vehicle crush zone crash sensor |
| 03/21/1990 | CN2054938U Non-friction contact multiple point line switch |
| 03/20/1990 | US4910634 Interlock switch |
| 03/20/1990 | US4910504 Touch controlled display device |
| 03/08/1990 | DE3828520A1 Extended measuring lead |
| 03/06/1990 | CA1266500A1 Magnetic switch |
| 02/20/1990 | US4903010 Intrusion detection switch housing |
| 02/20/1990 | US4902976 Probe for detecting the presence of magnetic material in a ground hole |
| 01/30/1990 | CA1265260A1 Method of sealing electric and electronic parts |
| 01/03/1990 | CN2050531U Movable art table lamp with adjustable hidden magnetic switch |
| 12/21/1989 | DE3918085A1 Electrical switching device for the internal lighting of refrigerators |
| 12/14/1989 | WO1989012310A1 Electric or electronic control keyboard |
| 12/13/1989 | EP0345954A2 High switching speed, coaxial switch for R.F. signals |
| 12/13/1989 | CN2049403U Automatic control system of dry reed pipe capable of direct connecting to main supply |
| 12/06/1989 | EP0344569A2 Electronic switching device, particularly proximity switch |
| 11/23/1989 | EP0342213A1 Control system for an electric cooker |
| 11/16/1989 | DE3815656A1 Magnet combination for triggering or clearing an electrical signal |
| 11/07/1989 | US4879443 Waterproof switch assembly for electrical appliances |
| 10/18/1989 | EP0203914B1 Touch controlled display device |
| 10/11/1989 | EP0336707A2 Pressure indicator |
| 09/26/1989 | US4870385 High switching speed, coaxial switch for R.F. signals |
| 09/19/1989 | US4867095 Differential pressure indicator |
| 09/13/1989 | CN2044372U 节电安全锁 Energy-saving safety lock |
| 09/13/1989 | CN1035582A Waterproof switch assembly for electrical appliances |
| 09/12/1989 | US4865073 Liquid level control for refrigeration system |
| 09/08/1989 | WO1989008320A1 Self-setting switch-actuating assembly and method |
| 09/06/1989 | CN2044097U Complet set for current auto-curring by cutting off water |
| 09/05/1989 | US4864087 Burglar alarm including a reed relay actuated in response to a vibrating magnet to produce an alarm signal |
| 08/30/1989 | CN2043786U Signal conversion switch for gck-1-type instrument |
| 08/29/1989 | US4862124 Fiber-optic reed switch |
| 08/23/1989 | EP0328947A2 Switch element for the equipment of a measuring conduit |
| 08/16/1989 | EP0328438A2 Apparatus and method for protecting the contacts of an electrical switch from current surges |
| 08/09/1989 | EP0327224A1 Fiber-optic reed switch |
| 08/08/1989 | US4855550 White touch pads for capacitive touch control panels |
| 08/02/1989 | CN2042250U Ripple-type transformer alarm |
| 07/18/1989 | US4849048 Using ultraviolet curing resins |
| 07/11/1989 | US4847719 Apparatus and method for protecting the contacts of an electrical switch from current surges |
| 07/04/1989 | US4845429 Inductance divider sensor |
| 06/27/1989 | US4843193 Reservoir for a hydraulic brake system |
| 06/20/1989 | US4841107 Device for indicating the filling level in a fluid reservoir |
| 06/14/1989 | EP0320112A2 Magnetic sensing proximity detector |
| 06/13/1989 | CA1255772A1 Proximity sensor |
| 06/08/1989 | DE3739756A1 Retaining device for an electrical transmitter (sensor) element |
| 06/07/1989 | EP0319264A1 Rotary shaft position reed switch |
| 06/06/1989 | US4837539 Magnetic sensing proximity detector |
| 06/06/1989 | US4837537 Reed switch device |
| 06/01/1989 | DE3804558A1 Circuit element |
| 05/31/1989 | CN2038666U 点式磁记忆开关 Point magnetic memory switch |
| 05/24/1989 | EP0316901A2 Switch for high magnetic field |
| 05/24/1989 | EP0316534A1 Circuit element |
| 05/18/1989 | WO1989004543A1 Control system for an electric cooker |
| 05/17/1989 | CN2037869U Water level controller with phase-failure protection function |
| 05/16/1989 | US4831350 Rotary shaft position reed switch |
| 05/05/1989 | WO1989004014A1 Transmitter with magnetic zero/span actuator |
| 04/25/1989 | US4825181 Switching device |
| 04/18/1989 | CA1252691A1 Mounting means for proximity sensing device |
| 03/15/1989 | CN1031759A Fluid flow indicator |
| 03/14/1989 | US4812804 Controller for electric devices directed to use in bath |
| 02/14/1989 | US4805066 Hybrid float switch |
| 02/09/1989 | DE3724927A1 Switching device having a switching element and an operating element |
| 01/24/1989 | US4800264 Manually controlled static switch |
| 01/18/1989 | EP0299676A2 Fluid flow indicator |