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Class Information
Number: 250/343
Name: Radiant energy > Invisible radiant energy responsive electric signalling > Infrared responsive > With means to transmission-test contained fluent material
Description: Subject matter having a source of infrared radiation in addition to the signalling means and means to confine a gas, fluid or fluid-like material between the source and the signalling means so that the signalling means responds to radiation, from the source, that passes through the material.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7459699 |
Method of determining processing position in charged particle beam apparatus, and infrared microscope used in the method |
Dec. 2, 2008 |
| 7456969 |
Device and method for monitoring the oxygen concentration in an aircraft tank |
Nov. 25, 2008 |
| 7456971 |
Optical gas sensing apparatus |
Nov. 25, 2008 |
| 7446317 |
Multipass cell for gas analysis using a coherent optical source |
Nov. 4, 2008 |
| 7442936 |
Infrared spectroscopy method for measuring the base number of overbased lubricants |
Oct. 28, 2008 |
| 7435391 |
Light-mediated micro-chemical reactors |
Oct. 14, 2008 |
| 7435963 |
Flow cell and methods of use thereof |
Oct. 14, 2008 |
| 7432508 |
Gas measurement system |
Oct. 7, 2008 |
| 7427760 |
Infrared spectrometer |
Sep. 23, 2008 |
| 7420172 |
System and method for measuring water vapor in natural gas |
Sep. 2, 2008 |
| 7414244 |
Mixing ration detecting apparatus, method of controlling mixing ration detecting apparatus, and fuel cell system incorporating mixing ratio detecting apparatus |
Aug. 19, 2008 |
| 7397564 |
Turbidity sensor |
Jul. 8, 2008 |
| 7382459 |
Spectroscopic gas sensor, in particular for detecting at least one gas component in the ambient air, and method for manufacturing a spectroscopic gas sensor of this type |
Jun. 3, 2008 |
| 7379178 |
Flow through cell for optical spectroscopy |
May. 27, 2008 |
| 7373257 |
Photometrically modulated delivery of reagents |
May. 13, 2008 |
| 7354553 |
Method and apparatus for detecting the presence of elemental mercury in a gas sample |
Apr. 8, 2008 |
| 7351976 |
Monitoring system comprising infrared thermopile detector |
Apr. 1, 2008 |
| 7339657 |
Low-cost on-line and in-line spectral sensors based on solid-state source and detectors combinations for monitoring lubricants and functional fluids |
Mar. 4, 2008 |
| 7339168 |
System and method for detecting water vapor within natural gas |
Mar. 4, 2008 |
| 7332719 |
Gas sensor arrangement with improved long term stability and measuring method |
Feb. 19, 2008 |
| 7326931 |
Gas sensor assembly and measurement method with early warning means |
Feb. 5, 2008 |
| 7323687 |
infrared gas analyzer and infrared gas analysis method |
Jan. 29, 2008 |
| 7307259 |
System and method for controlling composition for lithography process in real time using near infrared spectrometer |
Dec. 11, 2007 |
| 7301641 |
Fiber optic smoke detector |
Nov. 27, 2007 |
| 7301640 |
System and method of condensation reduction in an electrical unit |
Nov. 27, 2007 |
| 7294839 |
Low volume sample cell and gas monitoring system using same |
Nov. 13, 2007 |
| 7291851 |
Infrared source modulation and system using same |
Nov. 6, 2007 |
| 7291836 |
Method and device for continuous determination of lubricating oil consumption of an internal combustion engine |
Nov. 6, 2007 |
| 7288768 |
Method for measuring the amount of an organic substance in a food product with infrared electromagnetic radiation |
Oct. 30, 2007 |
| 7276701 |
Method of infrared-optically determining the concentration of at least one analyte in a liquid sample |
Oct. 2, 2007 |
| 7277177 |
System and method for controlling a light source for cavity ring-down spectroscopy |
Oct. 2, 2007 |
| 7268352 |
Apparatus and method for determining the proportion of a substance in a gas sample using an infrared measuring instrument |
Sep. 11, 2007 |
| 7268882 |
Gas sensor arrangement in an integrated construction |
Sep. 11, 2007 |
| 7265842 |
Method for detecting a gaseous analyte present as a minor constituent in an admixture |
Sep. 4, 2007 |
| H2197 |
Diode-laser-based mid-infrared absorption sensor for carbon monoxide |
Aug. 7, 2007 |
| 7253413 |
Gas identification system |
Aug. 7, 2007 |
| 7244939 |
Gas sensor |
Jul. 17, 2007 |
| 7244940 |
Gas sensor arrangement and measuring method for improving long-term stability |
Jul. 17, 2007 |
| 7245380 |
Quartz-enhanced photoacoustic spectroscopy |
Jul. 17, 2007 |
| 7242479 |
Gas sensors |
Jul. 10, 2007 |
| 7242001 |
Device for measuring water quality |
Jul. 10, 2007 |
| 7238942 |
Spectrometric using broadband filters with overlapping spectral ranges |
Jul. 3, 2007 |
| 7230687 |
Blood leak detector for extracorporeal treatment system |
Jun. 12, 2007 |
| 7230711 |
Envelope functions for modulation spectroscopy |
Jun. 12, 2007 |
| 7227642 |
Absorbance monitor |
Jun. 5, 2007 |
| 7223978 |
Method for measuring gaseous species by derivation |
May. 29, 2007 |
| 7221448 |
Test cell for a noble gas polarizer |
May. 22, 2007 |
| 7193718 |
Wavelength modulation spectroscopy method and system |
Mar. 20, 2007 |
| 7176464 |
Method of and apparatus for determining the amount of impurity in gas |
Feb. 13, 2007 |
| 7172903 |
Method for on-line monitoring of lubricating oil using light in the visible and near IR spectra |
Feb. 6, 2007 |
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