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Class Information
Number: 128/207.12
Name: Surgery > Respiratory method or device > Face mask covering a breathing passage > Covering nose and mouth > Valve for controlling gas flow
Description: Subject matter including a valve for controlling gas flow.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7428903 |
Fibrous filtration face mask having a new unidirectional fluid valve |
Sep. 30, 2008 |
| 7370654 |
Tracheostoma valve |
May. 13, 2008 |
| 7360538 |
Oxygen therapy face mask |
Apr. 22, 2008 |
| 7311104 |
Method of making a filtering face mask that has an exhalation valve |
Dec. 25, 2007 |
| 7255106 |
Inhalation mask |
Aug. 14, 2007 |
| 7252110 |
Membrane valve and second stage pressure reducer for two-stage underwater regulators incorporating said valve |
Aug. 7, 2007 |
| 7207335 |
Mask and vent assembly therefor |
Apr. 24, 2007 |
| 7195013 |
Systems and methods for modulating autonomic function |
Mar. 27, 2007 |
| 7195012 |
Systems and methods for reducing intracranial pressure |
Mar. 27, 2007 |
| 7188622 |
Filtering face mask that has a resilient seal surface in its exhalation valve |
Mar. 13, 2007 |
| 7185649 |
Systems and methods for increasing cerebral spinal fluid flow |
Mar. 6, 2007 |
| 7174893 |
Mask with anti-asphyxia valve |
Feb. 13, 2007 |
| 7159587 |
Respiratory mask having gas washout vent and gas washout vent assembly for respiratory mask |
Jan. 9, 2007 |
| 7134434 |
Pressure support system and method and a pressure control valve for use in such a system and method |
Nov. 14, 2006 |
| 7117868 |
Fibrous filtration face mask having a new unidirectional fluid valve |
Oct. 10, 2006 |
| 7111625 |
Demand valves for breathing apparatus |
Sep. 26, 2006 |
| 7089939 |
Gas delivery connection assembly |
Aug. 15, 2006 |
| 7069931 |
Method of making a filtering face mask that has an exhalation valve attached thereto |
Jul. 4, 2006 |
| 7028689 |
Filtering face mask that uses an exhalation valve that has a multi-layered flexible flap |
Apr. 18, 2006 |
| 7025060 |
Personal breathing filter |
Apr. 11, 2006 |
| 7013895 |
Exhalation and inhalation valves that have a multi-layered flexible flap |
Mar. 21, 2006 |
| 7013896 |
Mask with inhalation valve |
Mar. 21, 2006 |
| 6959709 |
Manner of attaching component elements to filtration material such as may be utilized in respiratory masks |
Nov. 1, 2005 |
| 6923181 |
Nasal mask |
Aug. 2, 2005 |
| 6871648 |
Oxygen and inhalation medication delivery system |
Mar. 29, 2005 |
| 6854463 |
Filtering face mask that has a new exhalation valve |
Feb. 15, 2005 |
| 6851425 |
Exhaust port assembly for a pressure support system |
Feb. 8, 2005 |
| 6823865 |
Respiratory mask having gas washout vent and gas washout vent assembly for respiratory mask |
Nov. 30, 2004 |
| 6766800 |
Pressure regulating valve for use in continuous positive airway pressure devices |
Jul. 27, 2004 |
| 6761166 |
Device for reducing dead space in a ventilator system |
Jul. 13, 2004 |
| 6729331 |
Pressure regulator |
May. 4, 2004 |
| 6718982 |
Face mask incorporating respiratory flow sensor |
Apr. 13, 2004 |
| 6718980 |
Treatment of carbon monoxide poisoning |
Apr. 13, 2004 |
| 6708692 |
Demand flow control valve |
Mar. 23, 2004 |
| 6668830 |
Low noise exhalation port for a respiratory mask |
Dec. 30, 2003 |
| 6644316 |
Variable aperture venting for respiratory mask |
Nov. 11, 2003 |
| 6604524 |
Manner of attaching component elements to filtration material such as may be utilized in respiratory masks |
Aug. 12, 2003 |
| 6584976 |
Face mask that has a filtered exhalation valve |
Jul. 1, 2003 |
| 6584977 |
Combined patient interface and exhaust assembly |
Jul. 1, 2003 |
| 6581594 |
Respiratory mask having gas washout vent and gas washout vent for respiratory mask |
Jun. 24, 2003 |
| 6581601 |
Nasal mask with balloon exhalation valve |
Jun. 24, 2003 |
| 6561190 |
Mask and a vent assembly therefor |
May. 13, 2003 |
| 6561191 |
Mask and a vent assembly therefor |
May. 13, 2003 |
| 6526967 |
Crew oxygen mask stowage assembly including selective depressurization valve |
Mar. 4, 2003 |
| 6513519 |
Inhalation atomizer with a one-piece valve element |
Feb. 4, 2003 |
| 6467483 |
Respiratory mask |
Oct. 22, 2002 |
| 6431170 |
Fluid mixing apparatus, method and system using same |
Aug. 13, 2002 |
| 6412485 |
Surface breathing vent for breathing apparatus |
Jul. 2, 2002 |
| 6371117 |
Directional valve |
Apr. 16, 2002 |
| 6343603 |
Connector |
Feb. 5, 2002 |
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