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Class Information
Number: 128/205.29
Name: Surgery > Respiratory method or device > Means for removing substance from respiratory gas > Particulate filtering
Description: Subject matter for filtering solid particles from respiratory gas.










Sub-classes under this class:

Class Number Class Name Patents
128/206.12 Face mask covering a breathing passage 323
128/206.11 Including means inserted in nasal passage 158


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8651106 Internal nose filter mounting device, method, and kit Feb. 18, 2014
8622057 Methods and apparatus for supplying clean breathable gas Jan. 7, 2014
8622059 Face mask with absorbent element Jan. 7, 2014
8590532 Filtration mask Nov. 26, 2013
8550079 Respiratory nasal filter Oct. 8, 2013
8469028 Respirator assembly Jun. 25, 2013
8460423 Filter cartridge having central plenum and housing sidewall Jun. 11, 2013
8443805 Headgear assembly for a respiratory mask assembly May. 21, 2013
8439038 Collapse resistant respirator May. 14, 2013
8414671 Personal air filtration device for use with bedding structure Apr. 9, 2013
8402966 Air purifying respirator having inhalation and exhalation ducts to reduce rate of pathogen transmission Mar. 26, 2013
8397726 Small size breathing protective device arranged to be held in the users mouth Mar. 19, 2013
8365723 Filter cartridge having cone of visibility for end-of-service-life-indicator (ESLI) Feb. 5, 2013
8347880 Pneumostoma management system with secretion management features for treatment of chronic obstructive pulmonary disease Jan. 8, 2013
8336540 Pneumostoma management device and method for treatment of chronic obstructive pulmonary disease Dec. 25, 2012
8316844 Protective hood Nov. 27, 2012
8286630 Apparatus for recycling moisture exhaled from worker within dry room to the worker Oct. 16, 2012
8267088 Collapse resistant respirator Sep. 18, 2012
8267091 Patient interfaces Sep. 18, 2012
8252080 Liquid absorbing filter assembly and system using same Aug. 28, 2012
8236081 Permeable membrane water dissipation device Aug. 7, 2012
8192523 Device and method for separating and increasing the concentration of charged particles in a sampled aerosol Jun. 5, 2012
8187356 Protective cover for respiratory device May. 29, 2012
8113198 Self-contained breathing system Feb. 14, 2012
8113201 Collapse resistant respirator Feb. 14, 2012
8110061 Respiratory nasal filter Feb. 7, 2012
8101129 Nano filter structure for breathing and manufacturing method thereof Jan. 24, 2012
8091550 Face mask having baffle layer for improved fluid resistance Jan. 10, 2012
8066005 Complex respirator Nov. 29, 2011
8066006 Filtering face-piece respirator having nose clip molded into the mask body Nov. 29, 2011
8056560 Universal dust mask/filter for ATV and dirt bike riders, method of making and method of using Nov. 15, 2011
8006696 Monitor for measuring improvement in involuntary breathing Aug. 30, 2011
7997275 Cough catcher with protection against germ transmission by hand contact Aug. 16, 2011
7972415 Membrane-based compressed air breathing system Jul. 5, 2011
7918224 Breathing air filtration system Apr. 5, 2011
7918225 Breathing air filtration devices Apr. 5, 2011
7900628 Patient interface device Mar. 8, 2011
7874292 Patient interfaces Jan. 25, 2011
7861719 High surface area chemical/biological air-purifying filter Jan. 4, 2011
7849856 Respirator valve Dec. 14, 2010
7836887 Protective mask Nov. 23, 2010
7770581 Breathing mask Aug. 10, 2010
7762255 Safety device for breathing circuit carbon dioxide absorber Jul. 27, 2010
7721732 Respiratory heat exchanger May. 25, 2010
7686018 Face mask for the protection against biological agents Mar. 30, 2010
7665464 Respiratory mask Feb. 23, 2010
7658190 Portable air-purifying system utilizing enclosed filters Feb. 9, 2010
7650884 Respiratory facepiece and method of making a facepiece using separate molds Jan. 26, 2010
7607433 Gas delivery and monitoring system Oct. 27, 2009
7597733 Liquid absorbing filter assembly and system Oct. 6, 2009

1 2 3 4 5










 
 
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