|
| US3949934 | 24 maj 1974 | 13 apr 1976 | | Container having a valve movable between one-way flow and closed positions |
| US3954121 | 17 mar 1975 | 4 maj 1976 | The Weatherhead Company | Vent check valve |
| US4036919 | 17 dec 1975 | 19 jul 1977 | Inhalation Therapy Equipment, Inc. | Nebulizer-humidifier system |
| US4039639 | 10 apr 1975 | 2 aug 1977 | Richard L. Kankel | Liquid entraining system of the humidifier and nebulizer type |
| US4051847 | 24 okt 1975 | 4 okt 1977 | | Anesthesia rebreathing apparatus |
| US4134940 | 25 okt 1977 | 16 jan 1979 | Aerwey Laboratories, Inc. | Humidifier adapter with audio relief valve |
| US4142677 | 27 jun 1977 | 6 mar 1979 | Tom McGuane Industries, Inc. | Fuel vapor vent valve |
| US4149556 | 26 sep 1978 | 17 apr 1979 | Respiratory Care, Inc. | Tubular connector having audible relief valve |
| US4210173 | 6 sep 1978 | 1 jul 1980 | American Hospital Supply Corporation | Syringe pumping system with valves |
| US4244378 | 30 maj 1978 | 13 jan 1981 | The West Company | Pressure responsive one-way valve for medical systems |
| US4286628 | 21 jun 1979 | 1 sep 1981 | Nypro, Inc. | Control of fluid flow using longitudinally movable disc |
| US4317456 | 10 mar 1980 | 2 mar 1982 | Becton, Dickinson and Company | Multiple sample needle with anti-backflow valve |
| US4338267 | 17 nov 1980 | 6 jul 1982 | Becton, Dickinson and Company | Medical gas humidifier with audible pressure relief valve and method of use |
| US4350647 | 19 jun 1981 | 21 sep 1982 | Respiratory Care, Inc. | Permanent adapter for a medical humidifier |
| US4369812 | 18 feb 1981 | 25 jan 1983 | Nypro Inc. | Control of fluid flow using precisely positioned disc |
| US4415003 | 27 aug 1981 | 15 nov 1983 | Nypro Inc. | Control of fluid flow using a flexible disc |
| US4556086 | 26 sep 1984 | 3 dec 1985 | Burron Medical Inc. | Dual disc low pressure back-check valve |
| US4615693 | 27 mar 1984 | 7 okt 1986 | Nypro Inc. | Administration of fluids |
| US4681132 | 23 maj 1986 | 21 jul 1987 | Halkey-Roberts Corporation | Check valve with preset cracking pressure |
| US4749003 | 22 jan 1987 | 7 jun 1988 | Filtertek, Inc. | Center flow check valve |
| US4762149 | 25 nov 1987 | 9 aug 1988 | | Double seal press assembled check valve |
| US4765372 | 17 jun 1983 | 23 aug 1988 | Illinois Tool Works Inc. | Check valve |
| US4915879 | 28 jun 1989 | 10 apr 1990 | Automatic Liquid Packaging, Inc. | Signal coupling for humidifier container |
| US4966199 | 8 jun 1989 | 30 okt 1990 | Filtertek, Inc. | Diaphragm-type center flow check valve |
| US5039401 | 21 sep 1990 | 13 aug 1991 | Eastman Kodak Company | Blood collection and centrifugal separation device including a valve |
| US5971723 | 13 jan 1998 | 26 okt 1999 | KNF Flodos AG | Dosing pump |
| US6021961 | 6 mar 1998 | 8 feb 2000 | Flexible Products Company | Crossover-resistant plural component mixing nozzle |
| US6062248 | 5 aug 1998 | 16 maj 2000 | | Fluid flow-sensor and valve |
| US6409707 | 8 aug 2000 | 25 jun 2002 | Industrie Borla Spa | Anti-siphon valve for medical infusion lines and the like |
| US6568557 | 12 mar 2001 | 27 maj 2003 | Cosco Management, Inc. | Spill proof training cup |
| US7475864 | 31 maj 2006 | 13 jan 2009 | Osamu Kawai Compac Japan Ltd. | Deflation valve for compression bag and compression bag equipped with the deflation valve |
| US7721763 | 8 jan 2008 | 25 maj 2010 | | Adjustable pressure relief valve |
| US7896401 | 6 mar 2007 | 1 mar 2011 | Smiths Medical ASD, Inc. | Respiratory gas humidifier adapter with pressure relief valve and audible signal generator |
| USRE30552 | 25 jun 1979 | 24 mar 1981 | Tom McGuane Industries, Inc. | Fuel vapor vent valve |