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Class Information
Number: 250/373
Name: Radiant energy > Invisible radiant energy responsive electric signalling > Ultraviolet light responsive means > With means to transmission-test contained fluent material
Description: Subject matter having a source of ultraviolet 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.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7576841 |
Photometric apparatus |
Aug. 18, 2009 |
| 7482591 |
Carbonate scale detector |
Jan. 27, 2009 |
| 7462835 |
UV transmittance measuring device |
Dec. 9, 2008 |
| 7435391 |
Light-mediated micro-chemical reactors |
Oct. 14, 2008 |
| 7427763 |
Device for the uv treatment of flowing fluids |
Sep. 23, 2008 |
| 7425452 |
Pump-and-probe method for estimating strength of forming photochemical ozone and apparatus therefor |
Sep. 16, 2008 |
| 7402796 |
Method and apparatus for monitoring deposition of solids in pipelines using a plurality of radiation sources pointing to a unique detector |
Jul. 22, 2008 |
| 7390669 |
Simultaneous and rapid determination of multiple component concentrations in a Kraft liquor process stream |
Jun. 24, 2008 |
| 7372039 |
Near UV absorption spectrometer and method for using the same |
May. 13, 2008 |
| 7354553 |
Method and apparatus for detecting the presence of elemental mercury in a gas sample |
Apr. 8, 2008 |
| 7351981 |
Method and apparatus for measuring purity of noble gases |
Apr. 1, 2008 |
| 7339178 |
Device for the photometric measurement of the content of a chemical substance in an analyte |
Mar. 4, 2008 |
| 7329877 |
Photoelectrocatalytic sensor for measuring oxidizable impurities in air |
Feb. 12, 2008 |
| 7265842 |
Method for detecting a gaseous analyte present as a minor constituent in an admixture |
Sep. 4, 2007 |
| 7221448 |
Test cell for a noble gas polarizer |
May. 22, 2007 |
| 7189974 |
EUV light spectrum measuring apparatus and calculating method of EUV light intensity |
Mar. 13, 2007 |
| 7151264 |
Inline air handler system and associated method of use |
Dec. 19, 2006 |
| 7151265 |
Chopped radiation source |
Dec. 19, 2006 |
| 7148490 |
Method for determining the concentration of hydrogen peroxide in a process stream and a spectrophotometric system for the same |
Dec. 12, 2006 |
| 7009186 |
Method for monitoring of polymer in liquid state |
Mar. 7, 2006 |
| 6995386 |
Fluorescence detecting device with integrated circuit and photodiode, and detection method |
Feb. 7, 2006 |
| 6982426 |
Nitric oxide sensor and method |
Jan. 3, 2006 |
| 6940073 |
Method for determining the concentration of hydrogen peroxide in a process stream and a spectrophotometric system for the same |
Sep. 6, 2005 |
| 6878943 |
Hexavalent chromium monitor |
Apr. 12, 2005 |
| 6870160 |
Method and apparatus for monitoring the condition of a lubricating medium |
Mar. 22, 2005 |
| 6844563 |
Fluorescence detecting device with integrated circuit and photodiode, and detection method |
Jan. 18, 2005 |
| 6831746 |
System, method, and apparatus for non-intrusively determining concentration of a solute in a solution |
Dec. 14, 2004 |
| 6820014 |
Method for determination of realistic UV protection factors or broad spectrum indices |
Nov. 16, 2004 |
| 6803586 |
Fluid treatment system and method of treating fluid |
Oct. 12, 2004 |
| 6791092 |
Transmission meter, a method of measuring transmittance and a disinfection apparatus |
Sep. 14, 2004 |
| 6783705 |
Calibration medium for wavelength calibration of U.V. absorbance detectors and methods for calibration |
Aug. 31, 2004 |
| 6740893 |
Optical instrument, and device manufacturing method |
May. 25, 2004 |
| 6713795 |
Photodetector for ultraviolet light radiation |
Mar. 30, 2004 |
| 6703618 |
Method and measurement device for measuring suspension |
Mar. 9, 2004 |
| 6686594 |
On-line UV-Visible light halogen gas analyzer for semiconductor processing effluent monitoring |
Feb. 3, 2004 |
| 6642522 |
Optical gas sensor |
Nov. 4, 2003 |
| 6563571 |
Deuterium/tungsten light source arrangement |
May. 13, 2003 |
| 6512234 |
Optical radiation sensor device |
Jan. 28, 2003 |
| 6472669 |
Silicon carbide photodiode based flame scanner |
Oct. 29, 2002 |
| 6469308 |
Ultraviolet radiated water treatment tank |
Oct. 22, 2002 |
| 6459087 |
Sensor device for intensity measurement of UV light and a photochemical UV treatment system |
Oct. 1, 2002 |
| 6448563 |
Apparatus for the photo-initiated chemical cross-linking of material |
Sep. 10, 2002 |
| 6429438 |
Ultraviolet light detector for liquid disinfection unit |
Aug. 6, 2002 |
| 6403966 |
Measurement method and apparatus |
Jun. 11, 2002 |
| 6313468 |
Device for the continuous determination of the UV-transmission through flowing or running media |
Nov. 6, 2001 |
| 6307204 |
UV detector for liquid chromatography |
Oct. 23, 2001 |
| 6269680 |
Method and apparatus for measuring the concentration of hydrogen peroxide vapor |
Aug. 7, 2001 |
| 6263725 |
On-line sensor for colloidal substances |
Jul. 24, 2001 |
| 6254828 |
Fluid cell substance analysis and calibration methods |
Jul. 3, 2001 |
| 6091071 |
Opto-electronic sensor |
Jul. 18, 2000 |
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