| 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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| 05/01/1979 | US4151744 Method and apparatus for the measurement and control of viscosity of slurries |
| 05/01/1979 | US4151743 Densitometer drive |
| 04/24/1979 | CA1053024A1 Visual and electronic battery hydrometer |
| 04/03/1979 | US4147051 Densimeter |
| 04/03/1979 | CA1051760A1 Device and method for the determination of the specific gravity or osmolality of a liquid |
| 03/20/1979 | US4144763 Non-invasive method for the measurement of body fat |
| 03/06/1979 | US4142419 Sensing device for liquids |
| 01/30/1979 | US4136567 Pulp density meter |
| 01/30/1979 | US4136551 Densimeter |
| 01/23/1979 | US4135383 Vibration densitometer probe |
| 01/09/1979 | CA1045863A1 Method of and assembly for monitoring the dry density of a board product |
| 01/02/1979 | US4132110 Vibration type liquid density meter |
| 01/02/1979 | CA1045410A1 Pulp density meter |
| 01/02/1979 | CA1045407A1 Densitometer probe shield and well |
| 12/26/1978 | US4131668 Iron ore pellet process control |
| 12/26/1978 | US4131019 Method and apparatus for measuring specific gravity of liquids in process streams |
| 12/19/1978 | US4130126 Ink maintenance sensor |
| 12/12/1978 | US4129031 Immersible liquid densitometer |
| 11/21/1978 | US4126044 Antifreeze tester |
| 11/07/1978 | US4123936 Volumeter device |
| 10/24/1978 | US4121450 Apparatus for measuring the density of a moving elongate mass of filiform material |
| 10/17/1978 | US4121151 Analysis instrument |
| 10/10/1978 | CA1040266A1 Device for measuring the mass of particles of an aerosol per volume unit |
| 10/03/1978 | US4117716 Densitometer apparatus |
| 09/26/1978 | US4116072 Method and apparatus for determining the density of dry fibers |
| 09/19/1978 | US4114423 Device for measuring the density of liquid and gaseous substances and method for operating the device |
| 09/12/1978 | CA1038191A1 Method and apparatus for measuring specific gravity of liquids in process streams |
| 09/12/1978 | CA1038190A1 Apparatus for measuring the apparent weight of a sludge charging a liquid |
| 08/29/1978 | US4109531 Fluid sensing systems |
| 08/22/1978 | US4108727 Ionizing |
| 08/01/1978 | US4103700 Aviation fuel grade monitor |
| 06/20/1978 | US4095473 Pycnometer |
| 06/20/1978 | US4095455 Pneumatic detector for chromatographic analyzer |
| 04/18/1978 | US4084425 Vibration densitometer |
| 04/11/1978 | US4083228 Gas comparison pycnometer |
| 03/07/1978 | US4077265 Alcohol testers |
| 02/21/1978 | US4075680 Capacitance densitometer for flow regime identification |
| 02/21/1978 | US4074562 Method and apparatus for measuring fluid specific gravity |
| 01/03/1978 | US4065957 Fluid speed indicating apparatus and densitometer |
| 12/27/1977 | US4064739 Densitometer |
| 12/27/1977 | US4064738 Vibration densitometer |
| 12/20/1977 | US4063448 Density meter coil assembly |
| 09/20/1977 | US4048846 Pressure responsive apparatus |
| 09/13/1977 | US4047891 Density control system |
| 08/23/1977 | US4043193 Method and apparatus for measuring volume and density of fluids in a drilling fluid system |
| 08/16/1977 | US4041769 Densitometer |
| 08/16/1977 | US4041768 Device for measuring the mass of particles of an aerosol per volume unit |
| 07/26/1977 | US4037967 Apparatus for measuring the density of a liquid, utilizing the law of refraction |
| 07/26/1977 | US4037481 Device for measuring the density of liquids |
| 07/26/1977 | US4037462 Method of and assembly for monitoring the dry density of a board product |
| 07/26/1977 | US4037461 Probe and method of making the same |
| 07/26/1977 | US4037460 Densitometer |
| 07/26/1977 | US4037459 Densitometer |
| 07/05/1977 | US4033171 Pneumatic detector for chromatographic analyzer |
| 05/17/1977 | US4023400 Or densitometer |
| 04/26/1977 | US4020330 Densitometer |
| 04/12/1977 | US4016746 System and detector for measuring by means of sound the liter weight of the material in satellite coolers for rotative ovens |
| 04/05/1977 | US4016377 Slide switch assembly having improved fixed knife blade type contact structure |
| 04/05/1977 | US4015462 Device and method for the determination of the specific gravity or osmolality of a liquid |
| 03/22/1977 | US4013878 Device for an iterative determination of the variation of a function in a plane |
| 03/15/1977 | US4011746 Liquid density measurement system |
| 02/15/1977 | US4007627 Density transducers |
| 02/08/1977 | US4006635 Liquid level measuring process and indicator |
| 02/01/1977 | US4005606 Submersible load cell for measuring gas buoyancy |
| 02/01/1977 | US4005599 Fluid property detection system |
| 01/11/1977 | US4002053 Method and apparatus for measuring density of suspension |
| 01/04/1977 | US4000657 Apparatus for measuring the apparent weight of a sludge charging a liquid |
| 12/28/1976 | US3999421 Powder bulk density instrument |
| 11/30/1976 | US3994175 Device for detecting specific gravity and level of liquid |
| 11/30/1976 | US3994174 Device for measuring the density of liquids |
| 11/23/1976 | US3992939 Apparatus for producing a mass flow rate signal with or without a density signal |
| 11/16/1976 | US3991619 Apparatus for measuring specific gravity |
| 10/19/1976 | US3986388 Fluid property detection system |
| 10/05/1976 | US3983744 Method and apparatus for measuring the density of a dirty fluid |
| 09/21/1976 | US3981202 Apparatus for measuring the density of a cement slurry |
| 09/21/1976 | US3981183 Method and apparatus for measuring a physical property of a fluid material that varies nonlinearly relative to the density of the fluid |
| 09/21/1976 | US3981178 Gas density detecting apparatus |
| 08/31/1976 | US3977790 Apparatus for measuring the density of a contained liquid, by utilizing the angular displacement of the limiting angle at total reflection |
| 07/20/1976 | US3969938 Or density of a fluid stream |
| 07/13/1976 | US3968904 Continuous measurement of the bulk density of particulate material |
| 07/06/1976 | US3967490 Vibration densitometer |
| 06/22/1976 | US3964317 Densimeter |
| 06/15/1976 | US3964037 Fuel tank alarm systems |
| 06/08/1976 | US3962572 Rate divider |
| 05/25/1976 | US3958446 Discontinuity suppression apparatus for vibration densitometers |
| 05/18/1976 | US3956922 Densitometer probe shield and well |
| 05/11/1976 | US3955401 Apparatus for determining the density of a fluid |
| 05/04/1976 | US3954010 Visual and electronic battery hydrometer |
| 04/27/1976 | US3952761 System for controlling density of liquids |
| 04/27/1976 | US3952592 Fluid sensing systems |
| 03/30/1976 | US3946625 Liquid detector |
| 01/20/1976 | US3934127 Gravitometers |
| 01/20/1976 | US3933030 System for continuous monitoring of the density of cryogenic liquids via dielectric constant measurements |
| 01/13/1976 | US3932038 Apparatus for the continuous measurement of the density of a liquid by utilization of the law of refraction |