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Class Information
Number: 73/204.23
Name: Measuring and testing > Volume or rate of flow > Thermal type > Having particular electrical heating, cooling, or thermal sensing element
Description: Subject matter having a designated electrical thermal modifying or responsive element.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7533564 |
Micro sample heating apparatus and method of making the same |
May. 19, 2009 |
| 7528737 |
Temperature responsive indicators for process control instruments |
May. 5, 2009 |
| 7467547 |
Fluid-measuring device and fluid-measuring method |
Dec. 23, 2008 |
| 7399280 |
Passive and wireless in-vivo acoustic wave flow sensor |
Jul. 15, 2008 |
| 7373815 |
Thermal type flow measuring instrument with mold casing in metal insert |
May. 20, 2008 |
| 7367237 |
MEMS vascular sensor |
May. 6, 2008 |
| 7302844 |
Measurement element for determining a flow rate |
Dec. 4, 2007 |
| 7281423 |
Characteristics adjusting apparatus of physical quantity sensing device and a thermal type air flow measuring instrument, and associated adjusting method |
Oct. 16, 2007 |
| 7240730 |
Use of fiber optics in deviated flows |
Jul. 10, 2007 |
| 7228614 |
Method of manufacturing a gas flow meter |
Jun. 12, 2007 |
| 7228724 |
Apparatus and process for sensing target gas species in semiconductor processing systems |
Jun. 12, 2007 |
| 7201033 |
Flowmeter in-situ calibration verification system |
Apr. 10, 2007 |
| 7201049 |
Pulsed thermistor sensor |
Apr. 10, 2007 |
| 7191645 |
Dynamic mixed gas flowmeter |
Mar. 20, 2007 |
| 7049556 |
Heating device |
May. 23, 2006 |
| 7010972 |
Thermal type flow measuring instrument with mold casing in metal insert |
Mar. 14, 2006 |
| 6997256 |
Use of fiber optics in deviated flows |
Feb. 14, 2006 |
| 6983653 |
Flow sensor having thin film portion and method for manufacturing the same |
Jan. 10, 2006 |
| 6948362 |
Flow measurement device |
Sep. 27, 2005 |
| 6869425 |
Temperature compensation system for regulating flow through tubing in a pump |
Mar. 22, 2005 |
| 6820481 |
Mass flow sensor having an improved membrane stability |
Nov. 23, 2004 |
| 6804622 |
Method and apparatus for non-destructive thermal inspection |
Oct. 12, 2004 |
| 6681625 |
Constant-temperature-difference bidirectional flow sensor |
Jan. 27, 2004 |
| 6628202 |
Thermal dispersion mass flow rate and liquid level switch/transmitter |
Sep. 30, 2003 |
| 6571623 |
Measuring instrument with rectangular flow channel and sensors for measuring the mass of a flowing medium |
Jun. 3, 2003 |
| 6503221 |
Temperature compensation system for regulating flow through tubing in a pump |
Jan. 7, 2003 |
| 6474155 |
Constant-temperature-difference flow sensor |
Nov. 5, 2002 |
| 6453739 |
Time domain measurement and control system for a hot wire air flow sensor |
Sep. 24, 2002 |
| 6369712 |
Response adjustable temperature sensor for transponder |
Apr. 9, 2002 |
| 6360935 |
Apparatus and method for assessing solderability |
Mar. 26, 2002 |
| 6274951 |
EMI energy absorber |
Aug. 14, 2001 |
| 6240776 |
Mass flow sensor system for fast temperature sensing responses |
Jun. 5, 2001 |
| 6208254 |
Thermal dispersion mass flow rate and liquid level switch/transmitter |
Mar. 27, 2001 |
| 6085588 |
Flow rate sensor |
Jul. 11, 2000 |
| 6047597 |
Device for finding the flow rate of a flowing medium |
Apr. 11, 2000 |
| 6038921 |
Mass flow sensor system for fast temperature sensing responses |
Mar. 21, 2000 |
| 6035711 |
Device for determining the direction and speed of an air flow |
Mar. 14, 2000 |
| 5936156 |
Liquid metering |
Aug. 10, 1999 |
| 5848094 |
Heat transmission monitoring and/or measuring apparatus |
Dec. 8, 1998 |
| 5844135 |
Temperature sensor for measuring a flow medium in a flow conduit of an internal combustion engine |
Dec. 1, 1998 |
| 5804712 |
Oil flow sensor |
Sep. 8, 1998 |
| 5780737 |
Thermal fluid flow sensor |
Jul. 14, 1998 |
| 5780736 |
Axial thermal mass flowmeter |
Jul. 14, 1998 |
| 5582628 |
Unit and system for sensing fluid velocity |
Dec. 10, 1996 |
| 5544527 |
Flow meter having a main passage and a branch passage partially partitioned into plural regions |
Aug. 13, 1996 |
| 5477734 |
Pyroelectric swirl measurement |
Dec. 26, 1995 |
| 5467649 |
Mass flow sensor having a measuring element arranged on a membrane retained on a monocrystalline silicon wafer |
Nov. 21, 1995 |
| 5463899 |
Simultaneous measurement of gas thermal conductivity and mass flow |
Nov. 7, 1995 |
| 5413111 |
Bead thermistor airflow sensor assembly |
May. 9, 1995 |
| 5373737 |
Sensor device for mass flow controller |
Dec. 20, 1994 |
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