ClassID:

167453

G01N9/34 - CPC Classification

Classification description:

Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by using flow properties of fluids, e.g. flow through tubes or apertures by using elements moving through the fluid, e.g. vane

Recent Application in this class:
#1
20260070066
2026-03-12

CASCADING DENSITY SEPARATORS FOR FACILITATING DENSITY-BASED CLASSIFICATION OF PARTICULATE MATERIAL

#2
20250327400
2025-10-23

SYSTEM AND METHOD FOR MEASURING DOWNHOLE MUD FLOW DENSITY

#3
20250321174
2025-10-16

MEMS DENSIMETER

#4
20230204467
2023-06-29

Method for filling and/or cleaning the measurement cell of a measuring instrument and measuring instrument

#5
20230003628
2023-01-05

SYSTEM AND METHOD FOR MEASURING DOWNHOLE MUD FLOW DENSITY

#6
20210072129
2021-03-11

Method for determining a measurement error caused by a filling error

#7
20200232966
2020-07-23

Methods and System for Measuring Density of Fresh Concrete

#8
20200088619
2020-03-19

Resonant sensors for measuring fluid properties capable of operating at high temperatures and pressures

#9
20190003948
2019-01-03

Devices and methods for determining the density of insulation

#10
20170030870
2017-02-02

Method and device for multiple-frequency tracking of oscillating systems

#11
20160161386
2016-06-09

Fluid density meters auto-start by injection seed vibration using frequency scanning method

#12
20160054212
2016-02-25

Method of generating a drive signal for a vibratory sensor

#13
20150198562
2015-07-16

Piezoelectric unit, piezoelectric device, piezoelectric determination apparatus, and state determination method

#14
20150020588
2015-01-22

Systems and methods for determining specific gravity and minerological properties of a particle

#15
20140339919
2014-11-20

System of servicing device and field device and method for communication with a field device

#16
20140331766
2014-11-13

Method for measuring a fluid density or a fluid viscosity

#17
20130243028
2013-09-19

Apparatus and method for phase equilibrium with in-situ sensing

#18
20070113624
2007-05-24

Concentration detector and fuel supplier with said detector