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Class Information
Number: 250/428
Name: Radiant energy > Fluent material containment, support or transfer means
Description: Subject matter having or comprising means to at least, partially enclose or restrain a gaseous, fluid or fluid-like material or means to allow or cause movement to, from or through such means, or means to move such means and, thus, the material.


Sub-classes under this class:

Class Number Class Name Patents
250/431 With cleaning means 60
250/432R With irradiating source or radiating fluent material 296
250/429 With temperature control 25
250/430 With valve or pump actuator 31


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7432513 Gas shower, lithographic apparatus and use of a gas shower Oct. 7, 2008
7420180 Mass spectrometer and mass spectrometry Sep. 2, 2008
7408174 Fluid treatment system Aug. 5, 2008
7404806 Hemo-aide Jul. 29, 2008
7402798 Apparatus and method for controlling an electrostatically induced liquid spray Jul. 22, 2008
7391020 Electrospray apparatus with an integrated electrode Jun. 24, 2008
7323694 Fluid treatment system and radiation source module for use therein Jan. 29, 2008
7312440 Integrated micro fuel processor and flow delivery infrastructure Dec. 25, 2007
7304312 Ultraviolet reflecting compositions Dec. 4, 2007
7274016 Liquid switch, and microchip and mass-analyzing system using the same Sep. 25, 2007
7265348 Apparatus for dispensing a sample in electrospray mass spectrometers Sep. 4, 2007
7233888 Monte Carlo criticality-mode systems and methods for computing neutron and gamma fluence in a nuclear reactor Jun. 19, 2007
7226683 Proton conductor and method of producing the same Jun. 5, 2007
7217933 UV water disinfector May. 15, 2007
7205536 Micro matrix ion generator for analyzers Apr. 17, 2007
7109477 Automatic sample loader for use with a mass spectrometer Sep. 19, 2006
7105812 Microfluidic chip with enhanced tip for stable electrospray ionization Sep. 12, 2006
7060998 Component support and radioisotope generator including one or more component supports Jun. 13, 2006
7045791 Column simultaneously focusing a partilce beam and an optical beam May. 16, 2006
6987266 Structure determination of materials using electron microscopy Jan. 17, 2006
6977383 Method and apparatus for generating a membrane target for laser produced plasma Dec. 20, 2005
6967324 Micro matrix ion generator for analyzers Nov. 22, 2005
6956220 Fluid treatment system and radiation sources module for use therein Oct. 18, 2005
6936825 Process for the decontamination of microlithographic projection exposure devices Aug. 30, 2005
6841774 Sample introduction device for mass spectrometry using a fast fluidic system to synchronize multiple parallel liquid sample streams Jan. 11, 2005
6803568 Multi-channel microfluidic chip for electrospray ionization Oct. 12, 2004
6784440 Food sanitizing cabinet Aug. 31, 2004
6766822 Method of water distribution and apparatus therefor Jul. 27, 2004
6734436 Optical microfluidic devices and methods May. 11, 2004
6719716 Hemo-aide Apr. 13, 2004
6717142 Electron beam inspection method and apparatus and semiconductor manufacturing method and its manufacturing line utilizing the same Apr. 6, 2004
6642527 UV radiation device for treating fluids with a simplified radiation chamber Nov. 4, 2003
6635885 Apparatus for delivering calibration compounds to mass spectrometers and method Oct. 21, 2003
6596998 Method and system for identifying the source of a signal Jul. 22, 2003
6586747 Particle accelerator assembly with liquid-target holder Jul. 1, 2003
6555815 Apparatus and method for examining specimen with a charged particle beam Apr. 29, 2003
6528800 Particulate curing system Mar. 4, 2003
6428751 Self-centering sample cup assembly Aug. 6, 2002
6366633 Storage and dispatch container for radioactive miniature radiation sources Apr. 2, 2002
6340718 Method of radiation treatment for fluoropolymer materials Jan. 22, 2002
6142024 Apparatus and method for sampling and IR-spectroscopic analysis of high-purity, hygroscopic liquids Nov. 7, 2000
6090296 Method and apparatus for UV-oxidation of toxics in water and UV-disinfection of water Jul. 18, 2000
6030578 Coupling assembly for the sterile transfer of sterile materials between a transportable container and a sterile enclosure Feb. 29, 2000
5949536 High pressure optical cell for spectrometry Sep. 7, 1999
5814818 Gas tube for passing plasma generating gases Sep. 29, 1998
5567945 Compact atomic absorption analyzer Oct. 22, 1996
5496502 Adhesive plastic scintillator Mar. 5, 1996
5250258 Method for purifying and activating air and apparatus therefor Oct. 5, 1993
5164160 Installation to carry out continuous measurements in real time of masses of metals in an acid solution and to measure the acidity of this solution Nov. 17, 1992
5112659 Rabbit for radiation May. 12, 1992

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