| Patents for G01V 9 - Prospecting or detecting by methods not provided for in groups (2,873) |
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| 10/08/1991 | US5055830 Battery sensing mechanism |
| 10/02/1991 | EP0449518A1 Method and apparatus for detecting low volatility atmospheric vapors |
| 10/01/1991 | CA1289793C Microcurved optic fiber sensor |
| 09/18/1991 | EP0447158A2 Detector for concealed explosive or narcotic substances |
| 09/13/1991 | CA2012030A1 Sample handling system for molecular analyser |
| 09/03/1991 | US5045937 Geographical surveying using multiple cameras to obtain split-screen images with overlaid geographical coordinates |
| 08/28/1991 | EP0442969A1 Wholly microfabricated biosensors and process for the manufacture and use thereof |
| 08/08/1991 | CA2035791A1 Cost effective fluid line status sensor system |
| 07/10/1991 | CN1052955A Underground water exploration with secondary time difference in induced polarization and equipment thereof |
| 07/02/1991 | US5027643 Method and apparatus for detecting low volatility atmospheric vapors |
| 06/13/1991 | WO1991008466A1 Selective detection of vapors |
| 06/09/1991 | WO1991009307A1 Explosive detection screening system |
| 04/30/1991 | US5010776 Environmental contamination detection and analyzing system and method |
| 04/18/1991 | WO1991006192A1 Soft sonar suspension system |
| 04/18/1991 | CA2067242A1 Soft sonar suspension system |
| 03/19/1991 | US5001634 Method for mapping of sea level undulations with applications to hydrocarbon prospecting |
| 02/27/1991 | CN1011828B Whole-hole water-pressurizing test method |
| 02/20/1991 | EP0294464B1 Prospecting method |
| 02/19/1991 | US4994678 Apparatus for detecting a sheet by displacement of a roller |
| 02/19/1991 | US4993874 Method and apparatus for the collection of reduced gases |
| 02/01/1991 | WO1991002086A1 Oil and gas exploration |
| 02/01/1991 | CA2064692A1 Oil and gas exploration |
| 01/30/1991 | CN2070454U 数模兼容式水动态测量仪 Compatible dynamic modulus type water meter |
| 01/29/1991 | US4987767 Exposive detection screening system |
| 12/19/1990 | EP0402930A2 Sensor device |
| 12/12/1990 | EP0401861A2 Explosive detection screening system |
| 12/12/1990 | CA2018034A1 Battery sensing mechanism |
| 12/11/1990 | US4976151 Method and device for detecting blocked condition in a tube of a liquid infusion pump |
| 11/15/1990 | WO1990013803A1 Monitoring system and method for performing gas analysis |
| 10/17/1990 | EP0392163A2 System for geological defect detection utilizing composite video-infrared thermography |
| 10/03/1990 | EP0390052A2 Landmark recognition system and process |
| 09/20/1990 | WO1990010921A1 A method for detecting external influence on an optical cable |
| 09/20/1990 | WO1990010781A1 Method of locating oil and gas horizons using a wellbore heat flow log |
| 08/14/1990 | US4947682 Method of locating oil and gas horizons using a wellbore heat flow log |
| 06/05/1990 | US4931719 Hall-effect sensor arrangement |
| 05/31/1990 | WO1990005910A1 Wholly microfabricated biosensors and process for the manufacture and use thereof |
| 05/23/1990 | EP0369661A2 Walk-in inspection apparatus for producing air samples |
| 05/18/1990 | CA2003230A1 Walk-in inspection apparatus for producing air samples |
| 05/01/1990 | CA1268560A1 Method of exploration for uranium and petroleum |
| 04/12/1990 | DE3834595A1 Device on film processing machines |
| 04/04/1990 | EP0361753A2 Printer having paper-out and column zero detection mechanism |
| 04/03/1990 | US4914591 Method of determining rock compressive strength |
| 03/20/1990 | US4910593 System for geological defect detection utilizing composite video-infrared thermography |
| 03/20/1990 | US4909089 Walk-in inspection apparatus for producing air samples |
| 02/20/1990 | CA1266106A1 Electromechanical abutment sensor |
| 02/08/1990 | DE3822167A1 Light barrier |
| 01/30/1990 | US4897754 Switching apparatus |
| 01/30/1990 | US4896547 Air-sampling apparatus with easy walk-in access |
| 12/26/1989 | US4890060 Electromechanical abutment sensor with resilient damper plate for sensing sheets in a sheet folding machine |
| 11/21/1989 | US4881840 Printer having paper-out and column zero detection mechanism |
| 09/12/1989 | CA1259370A1 Method for compensating ground energy radiation and an apparatus for applying this method as well as for using same |
| 09/07/1989 | DE3806435A1 Diviner (divining rod) with sensitivity control |
| 09/05/1989 | US4864127 Earth surface hydrocarbon gas cloud detection by use of landsat data |
| 08/24/1989 | WO1989007748A1 Apparatus for inspecting ridge of elastic body |
| 08/08/1989 | US4855912 Method and apparatus for measurement of the thermal behavior of porous media |
| 08/01/1989 | US4853637 Fluid conductivity sensor for actuating an electroexploding device |
| 08/01/1989 | US4853543 Method and apparatus for detecting a tracer gas using a single laser beam |
| 07/26/1989 | EP0325386A1 A drop detector |
| 07/12/1989 | CN1033882A Whole-hole water-pressurizing test method |
| 07/11/1989 | US4846547 Microbend fiber-optic sensor |
| 06/26/1989 | EP0291506A4 Minerals and petroleum exploration using thermoluminescence. |
| 06/20/1989 | CA1256218A1 Apparatus and method for geochemical prospecting |
| 06/15/1989 | DE3901125A1 Method for pinpointing a geographical place and determining its extent and the temporal development of the activity at the centre focus of an approaching earthquake |
| 05/30/1989 | US4835435 Simple, sensitive, frequency-tuned drop detector |
| 05/10/1989 | EP0315546A1 Device for determining the point at which a vehicle crosses a boundary |
| 05/09/1989 | US4829286 Security fence system |
| 04/27/1989 | DE3735286A1 Method for determining the composition of mineral deposits |
| 04/25/1989 | US4825165 Method and apparatus for detecting a transient phenomenon by monitoring variations of an alternating component of a vertical current emanating from the earth's surface |
| 04/04/1989 | US4818870 Air withdrawing sampling probes for a contraband detection system |
| 03/01/1989 | EP0304434A1 Process and device for establishing the cohesion curve of an ocean floor at great depth |
| 12/27/1988 | US4793466 Device for detecting a sheet of glass |
| 12/21/1988 | CN87216744U Drilling laser flowmeter |
| 12/20/1988 | US4792526 From gas emanating from earth formation |
| 12/14/1988 | EP0294464A1 Prospecting method. |
| 11/23/1988 | EP0291506A1 Minerals and petroleum exploration using thermoluminescence |
| 11/22/1988 | US4785658 Method and apparatus for sensing hydrocarbon gases |
| 10/11/1988 | US4777476 Security fence |
| 09/07/1988 | WO1988006739A1 Process and device for establishing the cohesion curve of an ocean floor at great depth |
| 08/02/1988 | US4761649 Cable detector |
| 06/30/1988 | WO1988004784A1 Prospecting method |
| 06/29/1988 | EP0116609B1 Single handed test stick |
| 04/06/1988 | CN87105363A Auto anti-bounce system for micro-computer sound velocity logging |
| 03/16/1988 | EP0259881A2 Switching apparatus |
| 02/10/1988 | CN86105060A Theoretical calculation of prospecting net density for classification-c reserves |
| 02/03/1988 | CN87103319A Thermoelectric type infrared detector |
| 01/13/1988 | CN87201875U Low bottom air injecting instrument |
| 01/12/1988 | US4718268 Method and apparatus for detecting a contraband substance |
| 01/05/1988 | US4718047 Analysis of cement bonding utilizing temperature profiles |
| 12/23/1987 | CN86104175A Device for measuring flow speed and direction of underground water in ionization chamber isolope-tracing single well |
| 12/12/1987 | CN86210195U Measuring instrument for hydrologic track cable |
| 11/25/1987 | EP0246487A2 Security fence system |
| 11/11/1987 | EP0245082A2 Sampling probes |
| 11/11/1987 | EP0244824A2 Security fence |
| 10/31/1987 | CN86207804U Device for measuring direction and velocity of ground water flow in single well by means of isotope tracer in ionization chambers |
| 10/28/1987 | CN86208853U Wireless ultrasonic wave depth sounder |
| 10/13/1987 | US4700368 Method and apparatus for sensing sheets |
| 09/23/1987 | EP0238440A1 Fibre-optic microbend sensor |
| 09/09/1987 | CN86207534U Ultrasonic image logging detector with a gyroscope |
| 08/13/1987 | DE3600505A1 Radiation-measuring device employing the principle of a divining rod |
| 08/04/1987 | US4683654 Method of and device for sensing the presence or absence of an article at the end of a vacuum pick-up means |