| Patents for G01N 9 - Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity (6,694) |
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| 10/12/1999 | US5965805 Apparatus and method for determining the air entrainment characteristics of liquids |
| 10/06/1999 | EP0947821A1 Device for continuously detecting the development of reaction processes in a liquid |
| 09/30/1999 | WO1999049296A1 Method for measuring density and viscosity of particle-containing solution |
| 09/28/1999 | US5959297 Mass spectrometers and methods for rapid screening of libraries of different materials |
| 09/23/1999 | WO1999047897A1 Multi-phase fluid flow measurement apparatus and method |
| 09/23/1999 | DE19709143A1 Microwave immersion sensor for measuring very different parameters, e.g. distance, fill level, moisture, material conc., density, etc., e.g. for measuring sol., emulsions or suspensions in industrial process measurement |
| 09/22/1999 | EP0943091A1 Method and apparatus for characterizing materials by using a mechanical resonator |
| 09/22/1999 | EP0632886B1 Process and device for machine sorting of sawn timber according to strength |
| 09/21/1999 | US5953954 Installation and method for determining the level and density of a liquid in a tank, using a single immersed bubble probe |
| 09/14/1999 | US5952561 Real time asphalt pavement quality sensor using a differential approach |
| 09/07/1999 | US5948968 Flowing through an oil mist lubrication system |
| 09/02/1999 | WO1999044018A1 Generalized modal space drive control system for a vibrating tube process parameter sensor |
| 09/02/1999 | DE19751591A1 Determination of flowing mineral suspension density, for e.g. ores, coal, gypsum or sand |
| 09/01/1999 | EP0939315A1 In-line detector system for real-time determination of impurity concentration in a flowing gas stream |
| 08/25/1999 | EP0738342B1 Method for controlling a process by measurement of wood chips |
| 08/24/1999 | US5942684 Buoyancy force sensor for a hydrometer and interlock for a storage tank used in containing a respirable liquid cryogen |
| 08/19/1999 | DE19804401A1 Vorrichtung zur Aufnahme flüssiger Lebensmittel Apparatus for recording liquid food |
| 08/18/1999 | EP0936460A2 Shaped body and method for the semi-quantitative determination of the density of bones, bone-substitute material and bone implants |
| 08/18/1999 | EP0936451A1 Method and device for determining the volume of a ceramic test piece |
| 08/17/1999 | US5939650 Method for determining suitability of fluid |
| 08/12/1999 | WO1999039616A1 Container for liquid foodstuff |
| 08/11/1999 | EP0934520A1 Oil quality sensor |
| 08/11/1999 | EP0934515A1 Infrared spectroscopy and imaging of libraries |
| 08/11/1999 | CN1225722A Vibrating tube densimeter |
| 08/05/1999 | WO1999039181A1 Measurement of relative density of combustible gases |
| 08/05/1999 | DE19804326A1 Sensor especially for measuring the viscosity and density of a liquid or gas |
| 08/03/1999 | US5933226 Attachment for a concentration measuring apparatus and a concentration measuring system |
| 08/03/1999 | US5933015 Method and apparatus for measuring in-place soil density and moisture content |
| 08/03/1999 | US5932793 Of a multi-component gas |
| 07/29/1999 | WO1999037988A1 Fluid density measurement device |
| 07/29/1999 | DE19802414A1 Component for more accurate semi-quantitative density determination of bones, bone replacement materials or bone implants |
| 07/22/1999 | WO1999036768A1 Method and apparatus for measuring the relative density of a gas |
| 07/22/1999 | WO1999036767A1 Method and apparatus for measuring the calorific value of a gas |
| 07/22/1999 | WO1999035965A1 Instrument for measuring the amount of salt in a bone |
| 07/22/1999 | DE19845867A1 Surface tension measurement and process equipment for use with polymer melts |
| 07/21/1999 | EP0929801A1 Densitometer |
| 07/14/1999 | EP0725932B1 Method and system for measuring fluid parameters by ultrasonic methods |
| 07/07/1999 | CN2328008Y Static fluid suspension concentration online tester |
| 07/07/1999 | CN1044039C Combination well logging device |
| 06/24/1999 | DE19805550C1 Fluid density measuring device |
| 06/23/1999 | CN2325772Y Digital displaying type instrument for investigating density |
| 06/10/1999 | WO1999028708A1 Driver for oscillating a vibrating conduit |
| 06/10/1999 | DE19752686A1 Detecting stones in a stream of conveyed material in continuous handling equipment |
| 06/10/1999 | CA2312866A1 Driver for oscillating a vibrating conduit |
| 06/03/1999 | WO1999027344A1 Multi-sensor hydrostatic gauge for fuel storage tanks |
| 06/02/1999 | EP0660920B1 Coriolis mass flow rate sensor |
| 05/26/1999 | CN2320998Y Simple densimeter |
| 05/25/1999 | CA2037166C Production logging tool for measuring fluid densities |
| 05/19/1999 | EP0916303A1 Concentrationindicator |
| 05/18/1999 | US5905806 Method of detecting an explosive |
| 05/06/1999 | EP0912882A1 Vibrating tube densimeter |
| 05/04/1999 | US5900736 Paving material density indicator and method using capacitance |
| 05/04/1999 | US5900547 Differential level hydrometer |
| 05/04/1999 | US5900535 Method and apparatus for ultrasonic measurement of fuel quantity and density |
| 05/04/1999 | US5900534 To measure density of gas flowing from a gas supply through a mass flowmeter |
| 04/28/1999 | CN1043164C Additional mass method for enrockment body density measurement |
| 04/21/1999 | EP0909943A1 Vibration type gas densitometer |
| 04/15/1999 | WO1999018431A1 Method and apparatus for characterizing materials by using a mechanical resonator |
| 04/08/1999 | WO1999017112A1 Apparatus and method for determining the air entrainment characteristics of liquids |
| 04/08/1999 | WO1999017096A1 System and method for detection, identification and monitoring of submicron-sized particles |
| 04/08/1999 | CA2306032A1 System and method for detection, identification and monitoring of submicron-sized particles |
| 04/06/1999 | US5892143 Sensor device with fluid introduction holes |
| 04/06/1999 | CA2004142C A method and system for measuring a vertical densily profile of a fluid |
| 03/31/1999 | EP0905504A1 Apparatus for determining the mass and the density |
| 03/30/1999 | US5889278 Optical communication device |
| 03/24/1999 | CN1211731A Automatic continuous detection instrument for well drilling liquid chlorine ion |
| 03/23/1999 | US5886250 Pitch-catch only ultrasonic fluid densitometer |
| 03/23/1999 | US5885496 Pressurized feedshoe apparatus and method for precompacting powdered materials |
| 03/10/1999 | EP0900369A1 Measuring device comprising an excitable frequency gauge |
| 03/04/1999 | WO1999010740A1 Method for measuring without combustion the heat value of fuel gas |
| 03/04/1999 | WO1999010712A1 A method and apparatus for measuring oil effluent flow rates |
| 03/02/1999 | US5877493 Optical sensing apparatus |
| 03/02/1999 | US5877411 Fluid sensor |
| 02/25/1999 | DE19736528A1 Combustionless method to determine calorific value of, e.g. natural gas |
| 02/18/1999 | DE19733784A1 Density distribution measurement of solid consisting of particles |
| 02/17/1999 | CN2308092Y Determining meter for liquid density |
| 02/10/1999 | EP0895582A1 Differential pressure device |
| 02/09/1999 | US5869771 Multi-phase fluid flow measurement apparatus and method |
| 02/04/1999 | WO1999005517A1 Measuring relative density of a gas |
| 02/04/1999 | WO1999005482A1 Reduction in overall size, weight and extension of dynamic range of fluid metering systems |
| 02/04/1999 | CA2297250A1 Reduction in overall size, weight and extension of dynamic range of fluid metering systems |
| 02/03/1999 | EP0895081A2 Paving material density indicator and method using capacitance |
| 02/03/1999 | CN1206837A Method for measuring earth stratum density |
| 01/27/1999 | CN2305669Y Gravity displayer for cell electrolyte |
| 01/27/1999 | CN1206464A Measuring gold ratio of cast gold |
| 01/26/1999 | US5864240 Method and apparatus for measuring concentration of matter in liquid by using microwaves |
| 01/21/1999 | WO1999002964A1 Method for determining the density of a gas |
| 01/21/1999 | WO1999002945A1 Drive circuit modal filter for a vibrating tube flowmeter |
| 01/21/1999 | DE19730573A1 Automatic control of carbonisation in production of potassium carbonate solution from potassium hydroxide solution |
| 01/21/1999 | CA2303805A1 Method for determining the density of a gas |
| 01/21/1999 | CA2291237A1 Drive circuit modal filter for a vibrating tube flowmeter |
| 01/20/1999 | CN2304908Y Multifunctional battery electrolyte specific gravity gauge |
| 01/07/1999 | EP0889321A1 Moisture and density sensor |
| 01/07/1999 | EP0889317A2 Continuous method of removing impurities from crude silver nitrate |
| 12/30/1998 | CN2302513Y Railway bulk goods density meter |
| 12/23/1998 | EP0886128A1 Hydrometer for a liquid cryogen |
| 12/10/1998 | DE19724014A1 Apparatus to determine zero charge point of colloids and suspensions |
| 12/09/1998 | EP0882974A1 Device and procedure for determining the level and the density of a liquid in a tub, by means of a single bubble plunger tube |
| 12/08/1998 | US5847276 Fluid displacement level, density and concentration measurement system |
| 12/08/1998 | US5847273 Method and device for determining the delivered volume of a batch or lot of bulk material |