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Class Information
Number: 34/467
Name: Drying and gas or vapor contact with solids > Process > Gas or vapor contact with treated material > Treatment of gas or vapor
Description: Process involving any one or a combination of: (a) the use of gases having different degrees of vapor concentration regardless of how obtained; (b) changing or maintaining constant the vapor concentration by adding or removing gas or vapors; (c) adding any characteristic of material to or removing any characteristic of material from the treating gas or vapor.










Sub-classes under this class:

Class Number Class Name Patents
34/472 Absorption/adsorption of gas or vapor released from treated material 38
34/478 Combustion of gas or vapor 18
34/468 Condensation of gas or vapor 53
34/480 Filtering of gas or vapor 56
34/474 Gas or vapor humidity regulation 41
34/476 Gas or vapor temperature regulation 30


Patents under this class:
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Patent Number Title Of Patent Date Issued
8601718 Drying method in a household appliance Dec. 10, 2013
8567089 Evaporator, evaporation method and substrate processing apparatus Oct. 29, 2013
8438751 Dryer with heat recovery and method of operation thereof May. 14, 2013
8424220 Laundry dryer and method for controlling the same Apr. 23, 2013
8365436 System and method for drying a water-containing substance Feb. 5, 2013
8151483 Progressive dewatering and inhibitor dispersal rolling pig Apr. 10, 2012
8142727 Valveless regenerative thermal oxidizer for treating closed loop dryer Mar. 27, 2012
7971370 Vapor collection method and apparatus Jul. 5, 2011
7918039 Coating process and apparatus Apr. 5, 2011
7878112 Apparatus and methods for storing sensitive materials Feb. 1, 2011
7765714 Moist organic product drying system having a rotary waste heat evaporator Aug. 3, 2010
7758828 Pollution control in wood products dryer operation Jul. 20, 2010
7707741 Method and apparatus for dehydrating high level waste based on dew point temperature measurements May. 4, 2010
7654011 Two-stage thermal oxidation of dryer offgas Feb. 2, 2010
7472494 Adsorption dehumidifier for granules of plastics materials Jan. 6, 2009
7343699 Method and apparatus for drying Mar. 18, 2008
7210246 Methods and systems for handling a workpiece in vacuum-based material handling system May. 1, 2007
7160358 Pollution control in wood products dryer Jan. 9, 2007
6904702 Method and apparatus for drying substrate Jun. 14, 2005
6745494 Method and apparatus for processing wafers under pressure Jun. 8, 2004
6742281 Apparatus for drying semiconductor wafer using vapor dry method Jun. 1, 2004
6725565 Method for vacuum drying of substrate Apr. 27, 2004
6722056 Drying vapor generation Apr. 20, 2004
6681499 Substrate drying method for use with a surface tension effect dryer with porous vessel walls Jan. 27, 2004
6649883 Method of calibrating a semiconductor wafer drying apparatus Nov. 18, 2003
6647641 Device and method for the treatment of substrates in a fluid container Nov. 18, 2003
6589359 Cleaning method and cleaning apparatus for substrate Jul. 8, 2003
6550158 Substrate handling chamber Apr. 22, 2003
6543156 Method and apparatus for high-pressure wafer processing and drying Apr. 8, 2003
6536135 Carbon-enhanced fluoride ion cleaning Mar. 25, 2003
6508014 Method of drying substrates Jan. 21, 2003
6457259 Portable apparatus for drying stator windings and related process Oct. 1, 2002
6449873 Apparatus and method for dry cleaning of substrates using clusters Sep. 17, 2002
6446355 Disk drying apparatus and method Sep. 10, 2002
6430840 Method of and apparatus for drying a wafer using isopropyl alcohol Aug. 13, 2002
6405452 Method and apparatus for drying wafers after wet bench Jun. 18, 2002
6401361 Apparatus and method for drying wafers by a solvent Jun. 11, 2002
6398875 Process of drying semiconductor wafers using liquid or supercritical carbon dioxide Jun. 4, 2002
6357144 Two stage process for drying of raw wood material Mar. 19, 2002
6334266 Supercritical fluid drying system and method of use Jan. 1, 2002
6256905 Controlled atmosphere shipping/storage system and method Jul. 10, 2001
6249990 Method and apparatus for transporting articles Jun. 26, 2001
6223454 Method of drying moist organic material May. 1, 2001
6192601 Method and apparatus for reducing particle contamination during wafer transport Feb. 27, 2001
6176023 Device for transporting flat objects and process for transferring said objects between said device and a processing machine Jan. 23, 2001
6134807 Drying processing method and apparatus using same Oct. 24, 2000
6032384 Method of drying moist organic material Mar. 7, 2000
5983521 Process for splitting recycled combustion gases in a drying system Nov. 16, 1999
5966838 Process and apparatus for drying material with indirectly heated driers and for decontaminating waste gas Oct. 19, 1999
5826128 Apparatus for processing photosensitive material Oct. 20, 1998

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