ClassID:

167428

G01N2009/004 - CPC Classification

Classification description:

Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis comparing frequencies of two elements

Recent Application in this class:
#1
20260043729
2026-02-12

DETERMINING AND IDENTIFYING ANOMALIES IN FORK METERS

#2
20230228660
2023-07-20

Method and device for measuring fluid density

#3
20220244157
2022-08-04

DETERMINING AND IDENTIFYING ANOMALIES IN FORK METERS

#4
20210372906
2021-12-02

Densitometer with dissimilar tube and clamp materials

#5
20210372905
2021-12-02

Densitometer with tension measuring device for increased accuracy

#6
20200309658
2020-10-01

Method for signaling a standard frequency of a density meter which has at least one vibratable measurement tube for conducting a medium

#7
20200064244
2020-02-27

Vibratory cavity density meter

#8
20190339410
2019-11-07

Thermal modulated vibrating sensing module for gas molecular weight detection

#9
20190154485
2019-05-23

Method for determining a physical parameter of a compressible medium with a measuring transducer of vibration-type and measuring transducer for performing such a method

#10
20180245972
2018-08-30

Simultaneous oscillation and frequency tracking of multiple resonances via digitally implemented phase-locked loop array

#11
20170067809
2017-03-09

Determining the density and viscosity of a fluid using an electromagnetic force contactless driven densitoviscous sensor

#12
20160327464
2016-11-10

Method and system for estimating the specific gravity of an unknown fuel source in a multi-fuel engine

#13
20160216187
2016-07-28

Downhole systems for detecting a property of a fluid

#14
20150096385
2015-04-09

Method of, and apparatus for, measuring the physical properties of two-phase fluids

#15
20110271755
2011-11-10

Apparatus and methods for the measurement of mass related parameters