| Patents for G01L 9 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means (16,396) |
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| 07/18/1990 | EP0378312A2 Pressure measurement devices |
| 07/17/1990 | US4942383 Low cost wet-to-wet pressure sensor package |
| 07/12/1990 | WO1990007701A1 Multimodulus pressure sensor |
| 07/11/1990 | EP0164413B1 Pressure transducer |
| 07/11/1990 | CN1043785A Piezomagnetic tester for directly indicating absolute stress of concrete |
| 07/04/1990 | EP0376632A1 Capacitive pressure sensor and method for minimizing the parasitic capacitance in a capacitive pressure sensor |
| 07/04/1990 | EP0376631A1 Differential capacitive pressure sensor with over-pressure protection and method of providing over-pressure protection to a capacitive pressure sensor |
| 07/04/1990 | CN2058983U Pressure transducer |
| 07/03/1990 | US4939497 Pressure sensor |
| 07/03/1990 | US4938069 Pressure sensor |
| 07/03/1990 | US4938068 Pressure transducer |
| 07/03/1990 | US4938062 Barometric meter |
| 06/28/1990 | WO1990006723A1 Apparatus and method for sensing intravascular pressure |
| 06/28/1990 | WO1990006722A1 Gel-filled blood pressure transducer |
| 06/28/1990 | DE3843604A1 Hochdruckzelle High pressure cell |
| 06/28/1990 | DE3838689C1 Method for the continuous measurement of the pressure in a flexible fluid line for medical purposes, as well as a device for carrying out the method |
| 06/26/1990 | US4937553 Electrohydraulic device for continuously monitoring the pressure in a hydraulic brake system for automotive vehicles |
| 06/26/1990 | US4936148 Hall effect pressure transducer |
| 06/26/1990 | US4936147 Transducer and sensor apparatus and method |
| 06/23/1990 | CA2005801A1 Multimodulus pressure sensor |
| 06/21/1990 | DE3940861A1 Sensor for pressure greater than 50 mega Pascals - has silicon chip with aperture connected to boron silicate body |
| 06/21/1990 | CA2006177A1 Apparatus and method for sensing intravascular pressure |
| 06/20/1990 | EP0373536A2 Overload-proof capacitive pressure sensor |
| 06/20/1990 | EP0373315A1 Arrangement for the control of an electrically controlled brake circut of a multi-circuit brake system in a vehicle with pressure-actuated brakes |
| 06/19/1990 | US4935841 Pressure sensor |
| 06/19/1990 | US4934198 Displacement and torque sensor using resistance element that is progressively shorted |
| 06/19/1990 | US4934193 Pressure sensing transmitter |
| 06/19/1990 | CA1270524A1 Device for measuring stresses in vacuum deposition coatings |
| 06/13/1990 | EP0373010A1 Pressure sensor usable in oil wells |
| 06/13/1990 | EP0372988A2 High pressure package for pressure transducers |
| 06/13/1990 | EP0372773A2 Pressure sensor with flexible printed circuit |
| 06/13/1990 | EP0372092A1 Stress conversion device and its production method |
| 06/13/1990 | EP0371966A1 Tyre pressure sensor for motor vehicles. |
| 06/13/1990 | EP0207990B1 A device for recording physiological pressures |
| 06/12/1990 | US4933545 Optical pressure-sensing system using optical resonator cavity |
| 06/12/1990 | US4932266 Pressure sensor |
| 06/12/1990 | US4932265 Pressure transducer using thick film resistor |
| 06/12/1990 | US4932263 Temperature compensated fiber optic pressure sensor |
| 06/12/1990 | US4932262 Miniature fiber optic pressure sensor |
| 06/06/1990 | EP0371592A2 Sensors using vibrating elements |
| 06/06/1990 | EP0371256A1 Apparatus for measuring a physical quantity |
| 06/06/1990 | EP0371244A2 Magnetostrictive pressure sensor |
| 06/06/1990 | CN1008303B Resonant tube type compression transducer |
| 06/05/1990 | US4932061 Multi-pulse excitation linear-predictive speech coder |
| 06/05/1990 | US4930929 Glass tube/stainless steel header interface for pressure sensor |
| 06/05/1990 | US4930353 Semiconductor pressure sensor |
| 06/05/1990 | CA1270024A1 Multiple disc pressure responsive control device |
| 06/05/1990 | CA1269861A1 Pressure transmitter housing |
| 05/31/1990 | DE3839504A1 Method and device for measuring the leakage of a device operated with a gaseous medium |
| 05/30/1990 | EP0370003A1 Sensor construction. |
| 05/30/1990 | EP0205488B1 Variable gap device and method of manufacture |
| 05/30/1990 | EP0177491B1 Pressure compensated differential pressure sensor and method |
| 05/30/1990 | CN1042605A Pressure sensor of resistancefrequency type |
| 05/30/1990 | CN1042470A Sensing method for doctor's pulse-feeling |
| 05/29/1990 | US4929999 Combination of a support and a semiconductor body and method of manufacturing such a combination |
| 05/29/1990 | US4928702 Device for picking off and evaluating a pressure, in particular a pressure of a fluid |
| 05/29/1990 | US4928530 Pressure transducer |
| 05/29/1990 | US4928529 Force multiplying membrane instrument |
| 05/29/1990 | US4928376 Method for filling a cavity, such as a sensor cavity, with an incompressible fluid |
| 05/29/1990 | CA1269547A1 Remote measurement of conditions |
| 05/23/1990 | EP0369352A1 Capacitance type accelerometer and method of manufacturing the same |
| 05/17/1990 | WO1990003560A3 Fabrication of oxynitride frontside microstructures |
| 05/15/1990 | US4926155 Integrated circuit silicon pressure transducer package |
| 05/15/1990 | US4926143 Oscillator using H-shaped single crystal silicon vibrator |
| 05/15/1990 | US4924877 Pressure sensing catheter |
| 05/15/1990 | US4924870 Fiber optic sensors |
| 05/15/1990 | US4924701 Pressure measurement system |
| 05/09/1990 | EP0367750A2 Process for producing a silicon membrane with controlled mechanical stress |
| 05/09/1990 | CN2056996U Digital displaying pressure measurer for micropressure airstream |
| 05/08/1990 | US4922745 Fluid transducer |
| 05/03/1990 | WO1990004767A1 Hall effect pressure transducer |
| 05/03/1990 | WO1990004701A1 Solid state differential pressure sensor with overpressure stop and free edge construction |
| 05/01/1990 | US4920972 Gel-filled blood pressure transducer |
| 05/01/1990 | US4920805 Pressure sensor having baffling means |
| 04/24/1990 | US4918992 For high pressure environments; semiconductors |
| 04/24/1990 | US4918833 Method of assembling an electronic transducer |
| 04/20/1990 | CA2001047A1 Solid state differential pressure sensor with overpressure stop and free edge construction |
| 04/19/1990 | WO1990004093A1 Process and device for recognizing spark failures |
| 04/18/1990 | CN1007658B Enhanced superhigh pressure sensor and its process and equipment |
| 04/11/1990 | EP0362287A1 Modular transmitter. |
| 04/10/1990 | US4916497 Integrated circuits including photo-optical devices and pressure transducers and method of fabrication |
| 04/10/1990 | US4916426 Pressure sensor |
| 04/10/1990 | US4914962 Vibrating strip transducer |
| 04/05/1990 | WO1990003664A1 Pressure sensor |
| 04/05/1990 | WO1990003660A1 Low stress polysilicon microstructures |
| 04/05/1990 | WO1990003560A2 Fabrication of oxynitride frontside microstructures |
| 04/05/1990 | WO1990003557A1 Vibrating strip transducer |
| 04/05/1990 | DE3833456A1 Pressure pick-up for hot masses |
| 04/04/1990 | EP0361590A2 Temperature-compensating circuitry for capacitive pressure or pressure difference transducers |
| 03/28/1990 | EP0360286A2 Disposable pressure transducer |
| 03/27/1990 | US4911016 Semiconductor strain gauge bridge circuit |
| 03/21/1990 | CN1040682A Differntial pressure transducer |
| 03/21/1990 | CN1040681A Semiconductive force transferring apparatus |
| 03/20/1990 | US4909083 Pressure/differential pressure measuring device |
| 03/20/1990 | US4908921 Method of making capacitive pressure sensors |
| 03/15/1990 | DE3830059A1 Arrangement and method for high precision pressure measurement in situ by means of the pressure dependency and temperature dependency of electrical resistances of suitable liquids or pasty substances |
| 03/14/1990 | EP0358241A2 Method of determining inductivity of an inductive sensor |
| 03/14/1990 | EP0357717A1 Manometer. |
| 03/13/1990 | US4908693 Wiring structure of semiconductor pressure sensor |
| 03/13/1990 | US4907449 Meteorological data encoder for measuring atmospheric conditions |