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Class Information
Number: 128/206.18
Name: Surgery > Respiratory method or device > Means for removing substance from respiratory gas > Particulate filtering > Face mask covering a breathing passage > Covering nose only
Description: Subject matter wherein the mask overlies the nose only.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7451764 |
Nasal mask |
Nov. 18, 2008 |
| 7347209 |
Free breathing apparatus |
Mar. 25, 2008 |
| 7263996 |
Anion emission and anti-dust nose mask |
Sep. 4, 2007 |
| 7178527 |
Nasal mask and mask cushion therefor |
Feb. 20, 2007 |
| 7178528 |
Headgear for noninvasive ventilation interface |
Feb. 20, 2007 |
| 7156099 |
Nostril filtering system |
Jan. 2, 2007 |
| 7111626 |
Equine inhalation mask |
Sep. 26, 2006 |
| 7101423 |
Respiratory air filter |
Sep. 5, 2006 |
| 7077140 |
Face mask and method |
Jul. 18, 2006 |
| 7011093 |
Microencapsulated fragrances and methods of coating microcapsules |
Mar. 14, 2006 |
| 7004165 |
Nose filter |
Feb. 28, 2006 |
| 6886562 |
Oxygen breathing apparatus |
May. 3, 2005 |
| 6802315 |
Vapor deposition treated electret filter media |
Oct. 12, 2004 |
| 6789543 |
Assisted breathing device and method of wearing same |
Sep. 14, 2004 |
| 6752149 |
Nasal mask with replaceable filter |
Jun. 22, 2004 |
| 6684882 |
Respirator |
Feb. 3, 2004 |
| 6662803 |
Nasal mask |
Dec. 16, 2003 |
| 6581602 |
Nasal mask and mask cushion therefor |
Jun. 24, 2003 |
| 6564800 |
Nasal air passage device |
May. 20, 2003 |
| 6439235 |
Oxygen therapy equipment with a device for respiratory assistance without a nose tube |
Aug. 27, 2002 |
| 6435181 |
Respiratory mask with adjustable exhaust vent |
Aug. 20, 2002 |
| 6357440 |
Pliable respiratory mask |
Mar. 19, 2002 |
| 6357441 |
Nasal mask and mask cushion therefor |
Mar. 19, 2002 |
| 6341606 |
Disposable respiratory mask with adhesive skin interface |
Jan. 29, 2002 |
| 6213121 |
Nasal filtration system |
Apr. 10, 2001 |
| 6182659 |
Virus-removing filter |
Feb. 6, 2001 |
| 6098624 |
Simple mask for protection of respiratory system |
Aug. 8, 2000 |
| 6019101 |
Nasal air mask |
Feb. 1, 2000 |
| 5887587 |
Facial mask for respiratory apparatus |
Mar. 30, 1999 |
| 5740798 |
Disposable nasal band filter |
Apr. 21, 1998 |
| 5715814 |
Respiration mask |
Feb. 10, 1998 |
| 5681645 |
Flat elastomeric nonwoven laminates |
Oct. 28, 1997 |
| 5657752 |
Nasal positive airway pressure mask and method |
Aug. 19, 1997 |
| 5558089 |
Respirator nose clip |
Sep. 24, 1996 |
| 5526806 |
Non-invasive nasal cannula |
Jun. 18, 1996 |
| 5485836 |
Nose worn air filter |
Jan. 23, 1996 |
| 5392773 |
Respiratory particulate filter |
Feb. 28, 1995 |
| 5312324 |
Nasal dressing system |
May. 17, 1994 |
| 4984302 |
Nose-worn air filter |
Jan. 15, 1991 |
| 4915105 |
Miniature respiratory apparatus |
Apr. 10, 1990 |
| 4784131 |
Pollen protection device |
Nov. 15, 1988 |
| 4004584 |
Facially-worn breathing filter |
Jan. 25, 1977 |
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