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Class Information
Number: 210/493.1
Name: Liquid purification or separation > Filter > Supported, shaped or superimposed formed mediums > Pleated
Description: Apparatus in which the filter medium is folded back and forth upon itself.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7615091 |
Filter element, air cleaner, and methods |
Nov. 10, 2009 |
| 7597773 |
Producing method of laminated filter |
Oct. 6, 2009 |
| 7582131 |
Plastic support net for filter media |
Sep. 1, 2009 |
| 7481862 |
Filter assembly using adhesive center tube |
Jan. 27, 2009 |
| 7473362 |
Water treatment system |
Jan. 6, 2009 |
| 7473355 |
Chemical additive carrier for filter |
Jan. 6, 2009 |
| 7462282 |
Filter element and method for the production thereof |
Dec. 9, 2008 |
| 7455768 |
Fluid treatment elements |
Nov. 25, 2008 |
| 7438812 |
Filter element and method of making |
Oct. 21, 2008 |
| 7425266 |
Water-filtering media and filters |
Sep. 16, 2008 |
| 7413089 |
Reusable cartridge oil filter |
Aug. 19, 2008 |
| 7410575 |
Fluid filter and cap member |
Aug. 12, 2008 |
| 7404493 |
Filter device including pleated filter incorporated in a housing |
Jul. 29, 2008 |
| 7389883 |
Filter cartridge |
Jun. 24, 2008 |
| 7364602 |
Air cleaner assembly |
Apr. 29, 2008 |
| 7344577 |
Filter frame for bag house filter, and method |
Mar. 18, 2008 |
| 7323105 |
High capacity direct flow filter with maintained channel width |
Jan. 29, 2008 |
| 7323106 |
Multi-element filter with multiple pleat channel height |
Jan. 29, 2008 |
| 7314558 |
Pleated panel fluid filter |
Jan. 1, 2008 |
| 7311208 |
Environmentally friendly filter cartridge |
Dec. 25, 2007 |
| 7282075 |
Z-filter media with reverse-flow cleaning systems and methods |
Oct. 16, 2007 |
| 7261814 |
Non-planar media transmission filter apparatus and method |
Aug. 28, 2007 |
| 7261818 |
Method for the fabrication of a pleated filter |
Aug. 28, 2007 |
| 7258789 |
Non-planar media transmission filter apparatus and method with tray |
Aug. 21, 2007 |
| 7247237 |
Fluid cleaning filter and filter device |
Jul. 24, 2007 |
| 7205047 |
Smoke suppressant hot melt adhesive composition |
Apr. 17, 2007 |
| 7174688 |
Non clogging screen |
Feb. 13, 2007 |
| 7172694 |
Filter assembly |
Feb. 6, 2007 |
| 7168573 |
Environmentally friendly filter cartridge |
Jan. 30, 2007 |
| 7135052 |
Cassette filter |
Nov. 14, 2006 |
| 7132049 |
Negatively charged membrane |
Nov. 7, 2006 |
| 7128835 |
Fluid treatment packs, fluid treatment elements, and methods for treating fluids |
Oct. 31, 2006 |
| 7125434 |
Deep gradient-density filter device |
Oct. 24, 2006 |
| 7125490 |
Porous filter |
Oct. 24, 2006 |
| 7118673 |
Filter for oil containing adhesive contaminants |
Oct. 10, 2006 |
| 7108139 |
Plastic extruded center tube profile and method of manufacture |
Sep. 19, 2006 |
| 7097681 |
Structure of filtering bag combination |
Aug. 29, 2006 |
| 7097694 |
High performance, high efficiency filter |
Aug. 29, 2006 |
| 7094347 |
Positively charged membrane |
Aug. 22, 2006 |
| 7090772 |
Filter bag assembly |
Aug. 15, 2006 |
| 7081201 |
Encapsulated filter cartridge |
Jul. 25, 2006 |
| 7067056 |
Water filter with integrated treatment media |
Jun. 27, 2006 |
| 6977042 |
Microstructured filter |
Dec. 20, 2005 |
| 6962256 |
Plastic molded center tube assembly |
Nov. 8, 2005 |
| 6953124 |
Filter element with end face inlets and discharge outlets |
Oct. 11, 2005 |
| 6936084 |
Filter for the separation of contaminants from gas stream |
Aug. 30, 2005 |
| 6932907 |
Fluid treatment elements |
Aug. 23, 2005 |
| 6929742 |
Fine filter for a fuel feed unit |
Aug. 16, 2005 |
| 6913059 |
Ceramic fiber-based filter web and method |
Jul. 5, 2005 |
| 6911144 |
Filter cartridge with strap and method |
Jun. 28, 2005 |
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