|
| US4046163 | 8 Dec 1976 | 6 Sep 1977 | Eaton Corporation | Relief valve |
| US4172469 | 6 Feb 1978 | 30 Oct 1979 | McDonnell Douglas Corporation | Soft seat check valve |
| US5215117 | 20 Sep 1991 | 1 Jun 1993 | Engineered Controls International, Inc. | Double-check filler valve |
| US6237623 | 26 Jan 1998 | 29 May 2001 | HK Medical Technologies Incorporated | Nonsurgical intraurethral bladder control device |
| US7591291 | 17 Mar 2005 | 22 Sep 2009 | | Refueling assembly having a check valve receptacle and a replaceable fuel receiver for bottom-filled fuel tanks |