ClassID:

165098

G01F1/6983 - CPC Classification

Classification description:

Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects; Circuits therefor, e.g. constant-current flow meters; Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters adapted for burning-off deposits

Recent Application in this class:
#1
20200263623
2020-08-20

Method and device for controlling a heating element for heating a sensor element of a mass air-flow sensor for a vehicle and mass air-flow sensor system for a vehicle

#2
20170328754
2017-11-16

Thermal fluid flow sensor

#3
20160169731
2016-06-16

Method and device for diagnosing an auxiliary heating function of an air mass sensor

#4
20160068154
2016-03-10

Air flow sensor chip-heating control device and method of diesel hybrid electric vehicle

#5
20130105137
2013-05-02

Air flow measuring device

#6
20130055801
2013-03-07

Air flow rate measuring apparatus

#7
20110132398
2011-06-09

Method and apparatus for anti-fouling an anemometer

#8
20100192671
2010-08-05

Method for operating an exhaust gas mass flow sensor

#9
20100170483
2010-07-08

FILM RESISTOR IN AN EXHAUST-GAS PIPE

#10
20100117829
2010-05-13

Method for operating a flow sensor subjected to thermal and/or chemical treatments

#11
20090282909
2009-11-19

Film Resistor in Exhaust-gas Pipe

#12
20090211355
2009-08-27

Heated hot-film air-mass sensor

#13
20090205417
2009-08-20

Method for operating hot-film air-mass sensors

#14
20080295590
2008-12-04

Thermal type flow meter and engine control system using the same

#15
20080264166
2008-10-30

Flow sensor element and its self-cleaning

#16
20080133118
2008-06-05

Device and method for reducing the contamination of a sensor

#17
20070251315
2007-11-01

Thermal type flow sensor having a second control circuit to control a second heating resistor above the first heating temperature

#18
20060277983
2006-12-14

Heating resistor type fluid flow rate measuring apparatus and control apparatus for internal combustion engine having the measuring apparatus

#19
20050132795
2005-06-23

Thermal type gas flow measuring instrument