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Class Information
Number: 55/350.1
Name: Gas separation > Multiple separators, each with discrete and longitudinally confined gas inlet or outlet flow path > Filters
Description: Apparatus comprising at least two filters.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7422626 |
Method and device for declogging filter |
Sep. 9, 2008 |
| 7416574 |
Filter apparatus, exposure apparatus, and device-producing method |
Aug. 26, 2008 |
| 7416580 |
Filter assemblies and systems for intake air for fuel cells |
Aug. 26, 2008 |
| 7390340 |
Filtration apparatus |
Jun. 24, 2008 |
| 7332004 |
Effluent filtering and containment apparatus |
Feb. 19, 2008 |
| 7329310 |
Filter module |
Feb. 12, 2008 |
| 7201787 |
Air cleaner and method of controlling operation thereof |
Apr. 10, 2007 |
| 7160505 |
Method for bactericidal, fungicidal, virucidal and insecticidal treatment of ambient air |
Jan. 9, 2007 |
| 7138008 |
Filter assemblies and systems for intake air for fuel cells |
Nov. 21, 2006 |
| 7081145 |
Aerosol separator; and method |
Jul. 25, 2006 |
| 7077888 |
Device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants |
Jul. 18, 2006 |
| 6994738 |
Snow filter |
Feb. 7, 2006 |
| 6979359 |
Portable filter unit and methods for using same |
Dec. 27, 2005 |
| 6969414 |
Waste stream separator |
Nov. 29, 2005 |
| 6936085 |
Vacuum loader |
Aug. 30, 2005 |
| 6926762 |
Air cleaning apparatus |
Aug. 9, 2005 |
| 6908494 |
Multistage air cleaner including pulse cleaning system |
Jun. 21, 2005 |
| 6878177 |
Incubator having combined HEPA and VOC filter |
Apr. 12, 2005 |
| 6800200 |
Dual-flow filter cartridge |
Oct. 5, 2004 |
| 6797027 |
Filter assemblies and systems for intake air for fuel cells |
Sep. 28, 2004 |
| 6764532 |
Method and apparatus for filtering exhaust particulates |
Jul. 20, 2004 |
| 6758873 |
Aerosol separator and method |
Jul. 6, 2004 |
| 6742383 |
Diluter to reduce quantity of micro particles in the air so as to facilitate calculation of concentration of the micro particles in the air |
Jun. 1, 2004 |
| 6726456 |
Foreign matter removing structure in a fluid circuit and a compressor therewith |
Apr. 27, 2004 |
| 6723145 |
Open powder booth collection design |
Apr. 20, 2004 |
| 6723146 |
Blower apparatus for vehicle |
Apr. 20, 2004 |
| 6680028 |
Portable air purifier apparatus and system |
Jan. 20, 2004 |
| 6676721 |
Multistage air cleaner including pulse cleaning system |
Jan. 13, 2004 |
| 6584768 |
Vehicle exhaust filtration system and method |
Jul. 1, 2003 |
| 6569217 |
Industrial dust collector with multiple filter compartments |
May. 27, 2003 |
| 6551818 |
Biological filter structures |
Apr. 22, 2003 |
| 6540801 |
Aerosol separator; and method |
Apr. 1, 2003 |
| 6530377 |
Cigarette filter containing dry water and a porphyrin |
Mar. 11, 2003 |
| 6368386 |
Filter construction resistant to the passage of water soluble materials; and method |
Apr. 9, 2002 |
| 6355076 |
Aerosol separator; and method |
Mar. 12, 2002 |
| 6302933 |
Apparatus for separating liquid from gases |
Oct. 16, 2001 |
| 6280492 |
Flange for a device for separating an oil aerosol from air |
Aug. 28, 2001 |
| 6257242 |
Filter element |
Jul. 10, 2001 |
| 6187073 |
Air cleaner; aerosol separator; and method |
Feb. 13, 2001 |
| 6183609 |
Sintered laminated structures, electrochemical cells and process for producing such sintered laminated structures |
Feb. 6, 2001 |
| 6171355 |
Aerosol separator; and method |
Jan. 9, 2001 |
| 6164288 |
Cigarette filter containing dry water and microcapsules |
Dec. 26, 2000 |
| 6143049 |
Aerosol separator; and method |
Nov. 7, 2000 |
| 6123751 |
Filter construction resistant to the passage of water soluble materials; and method |
Sep. 26, 2000 |
| 6119701 |
Methods, agents and devices for removing nucleophilic toxins from tobacco and tobacco smoke |
Sep. 19, 2000 |
| 6066591 |
Reactive medium for purifying fluids |
May. 23, 2000 |
| 6056797 |
Dust collector filter cleaning control system |
May. 2, 2000 |
| 6027540 |
Apparatus for removal of particulate matter from gas streams |
Feb. 22, 2000 |
| 5984541 |
Resist processing system |
Nov. 16, 1999 |
| 5975086 |
Cigarette filter containing dry water and microcapsules |
Nov. 2, 1999 |
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