|
| US4803981 | 25 Mar 1985 | 14 Feb 1989 | | Anaesthesia mask |
| US5233978 | 3 Abr 1992 | 10 Ago 1993 | Medway | Nasal oxygen mask |
| US5560354 | 17 Jun 1994 | 1 Oct 1996 | ResCare Limited | Facial masks for assisted respiration or CPAP |
| US5738094 | 30 Ago 1996 | 14 Abr 1998 | | Anesthesia/respirator mask with reduced nasal section enclosure and inflatable cuff |
| US6035852 | 8 Oct 1997 | 14 Mar 2000 | | Inflated cuff anesthesia/respirator mask with improved nasal/maxilla bone adaptation |
| US6123071 | 26 Sep 1996 | 26 Sep 2000 | ResMed Limited | Facial masks for assisted respiration or CPAP |
| US6516802 | 2 May 2001 | 11 Feb 2003 | Mallinckrodt, Inc. | Method and combination for treating sleep apnea using a cantilever mask attachment device |
| US8205615 | 24 Sep 2007 | 26 Jun 2012 | RIC Investments, LLC | Self directing exhaust port assembly |
