| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 096075000 | Plural diverse electric fields | 9 |
| 20080276805 | Vehicle Passenger Compartment Air Filter Devices - A vehicle passenger compartment air filter device comprising a filtration medium comprising (i) a first filter layer comprising a electrostatically charged split fiber nonwoven web layer and optionally a scrim affixed to said split fiber layer; (ii) a nonwoven web of electret charged thermoplastic microfibers as a second filter layer, said microfibers having an effective fiber diameter (EFD) of greater than 10 μm and comprising a thermoplastic resin having a resistivity greater than 10 | 11-13-2008 |
| 20120097037 | AIR FILTER MATERIAL USING LAMINATED ELECTRET NONWOVEN FABRIC - Present invention provides an air filter material using a laminated electret nonwoven fabric subjected to electret processing in which one layer or a plurality of layers of nonwoven fabrics (referred to as nonwoven fabric B) including fibers having a mean fiber diameter in the range of 10 micrometers to 100 micrometers and being larger than a mean fiber diameter of fibers constituting nonwoven fabric A are laminated on at least one side of a nonwoven fabric (referred to as nonwoven fabric A) obtained by mixing two kinds of fibers having a mean fiber diameter in the range of 0.1 micrometer to 15 micrometers and having a different melting point (fibers having a lower melting point are defined as fibers D and fibers having a higher melting point are defined as fibers E), and a laminated electret filter material having a low pressure loss and a high collection efficiency. The filter material is suitably used for a medical mask, an industrial mask, a general purpose mask or the like. | 04-26-2012 |
| 20160074877 | Electrostatic Precipitator - An electrostatic precipitator may have a set of collector electrodes and a set of repelling electrodes. The conductive portions of the collector electrodes and/or the repelling may be arranged in segments. The segments may have differing electrical properties or may be electrically isolated to facilitate differing potentials along an airflow path. The differing potentials results in differing electric field strengths along the airflow path. | 03-17-2016 |
| 096076000 | One or more electrodes common to plural fields | 1 |
| 20140109768 | ELECTROSTATIC FILTER AND METHOD OF INSTALLATION - An air filtration system includes a frame directing an airflow through the air filtration system and a media filter disposed in the frame including one or more filtration elements. The system further includes one or more alignment features and one or more sealing elements interactive with the one or more alignment features to prevent incorrect installation of the media filter into the frame. A method of installing a media filter in an air filtration system includes aligning an alignment feature of the media filter with an opening in a frame of the air filtration system and inserting the media filter into the frame. The alignment feature ensures that the media filter is inserted in the frame in a correct orientation. | 04-24-2014 |
| 096077000 | Serially arranged ionizing and collecting or agglomerating fields | 5 |
| 20080307973 | Single Stage Electrostatic Precipitator - In an electrostatic precipitator for filtering particulate matter from a gas, a fan ( | 12-18-2008 |
| 20100024653 | CONDUCTING AIR FILTER AND FILTER ASSEMBLY - The present invention relates to a conducting filter ( | 02-04-2010 |
| 20150075379 | FILTRATION ASSEMBLY - A filtration assembly ( | 03-19-2015 |
| 20150377500 | ELECTRIC DUST COLLECTING DEVICE AND AIR CONDITIONER HAVING THE SAME - An electric dust collecting device and an air conditioner having the same are disclosed. The electric dust collecting device includes a first filter unit including a plurality of discharge electrode plates which are spaced apart from each other and have spaces defined therebetween, a high voltage generator electrically connected to all of the plurality of discharge electrode plates, and a second filter unit disposed downstream of the first filter unit in an air flow direction and connected to a ground to cause corona discharge between the discharge electrode plates and the second filter unit, whereby particles electrically charged by corona discharge are collected at the second filter unit. The first filter unit has a simplified structure, and cleaning effect is improved. | 12-31-2015 |
| 096078000 | Adjacent parallel collector electrodes are differently charged | 1 |
| 096079000 | Collecting electrodes are flat plates | 1 |
| 20110209621 | DEVICE FOR INACTIVATING AND FINELY FILTERING VIRUSES AND MICROORGANISMS IN A FLOW OF AIR - This device for inactivating and finely filtering viruses and microorganisms in a flow of air is intended for cleaning air or gas. The device comprises a high voltage power supply ( | 09-01-2011 |
