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Class Information
Number: 128/206.19
Name: Surgery > Respiratory method or device > Means for removing substance from respiratory gas > Particulate filtering > Face mask covering a breathing passage > Body of mask, other than viewing means, formed of porous filter material (e.g., surgical mask formed entirely of cloth, etc.)
Description: Subject matter wherein the body of the mask, other than a viewing means, is formed of foraminous filter material.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8678002 Devices and methods for decreasing human pathogen transmission Mar. 25, 2014
8640704 Flat-fold filtering face-piece respirator having structural weld pattern Feb. 4, 2014
8622059 Face mask with absorbent element Jan. 7, 2014
8573199 Ultrasonic in situ respiratory mask testing process and mask Nov. 5, 2013
8528560 Filtering face-piece respirator having parallel line weld pattern in mask body Sep. 10, 2013
8439038 Collapse resistant respirator May. 14, 2013
8430100 Universal fit face mask Apr. 30, 2013
8375950 Flat-folded personal respiratory protection devices and processes for preparing same Feb. 19, 2013
8365732 Wearable protective device Feb. 5, 2013
8360067 Expandable face mask with engageable stiffening element Jan. 29, 2013
8251065 Four-sided dustproof mask Aug. 28, 2012
8182568 Two-stage air filter and mask incorporating the same May. 22, 2012
8176918 Three dimensional face mask May. 15, 2012
8171931 Valve unit for a rebreather apparatus May. 8, 2012
8136524 Disposable mask system Mar. 20, 2012
8113201 Collapse resistant respirator Feb. 14, 2012
8091550 Face mask having baffle layer for improved fluid resistance Jan. 10, 2012
8091551 Facemask with filtering closure Jan. 10, 2012
8091552 Apparatus to mitigate the spread of infectious material caused by coughing or sneezing Jan. 10, 2012
8074660 Expandable face mask with engageable stiffening element Dec. 13, 2011
8056560 Universal dust mask/filter for ATV and dirt bike riders, method of making and method of using Nov. 15, 2011
8006694 Pop-open respiratory etiquette device Aug. 30, 2011
7958889 Protective face cover and moldable attachment Jun. 14, 2011
7946290 Underwater exhaust system and method May. 24, 2011
7802572 Face mask Sep. 28, 2010
7766015 Air filtering soft face mask Aug. 3, 2010
7762257 Secure nano-mask Jul. 27, 2010
7726314 Nebulizer, filter or inhalant mask encouraging use thereof Jun. 1, 2010
7721732 Respiratory heat exchanger May. 25, 2010
7703456 Facemasks containing an anti-fog / anti-glare composition Apr. 27, 2010
7677248 Stiffened filter mask Mar. 16, 2010
7624735 Cheek-mounted patient interface Dec. 1, 2009
7615092 Filtering mask Nov. 10, 2009
7530354 Distending nasal air filter May. 12, 2009
7520923 Antimicrobial filtration article Apr. 21, 2009
7337779 Facemask tape-adjuster Mar. 4, 2008
7311105 Mask having a scenting means, and method for blocking out unpleasant odors Dec. 25, 2007
7290545 Face mask with anti-fog folding Nov. 6, 2007
7255627 Garment device convertible to one or more facemasks Aug. 14, 2007
7237550 Respirator containing filter cases Jul. 3, 2007
7210482 Face mask structure May. 1, 2007
7185653 Disposable mask for dust protection Mar. 6, 2007
7171967 Face mask and method of manufacturing the same Feb. 6, 2007
7131442 Fibrous filtration face mask Nov. 7, 2006
7107990 Portable face protector for protecting human being from poisonous gas and securing visibility Sep. 19, 2006
7101423 Respiratory air filter Sep. 5, 2006
7086401 Respiratory mask with inserted spacer Aug. 8, 2006
7077140 Face mask and method Jul. 18, 2006
7069930 Flat-folded personal respiratory protection devices and processes for preparing same Jul. 4, 2006
7069931 Method of making a filtering face mask that has an exhalation valve attached thereto Jul. 4, 2006

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