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| US3995774 | 12 Sep 1975 | 7 Dec 1976 | Diamond International Corporation | Liquid dispenser having deformable diaphragm type pump |
| US4012177 | 31 Aug 1973 | 15 Mar 1977 | | Blood pump tube element |
| US4101057 | 2 Dec 1976 | 18 Jul 1978 | Ethyl Corporation | Trigger actuated pump |
| US4182465 | 12 Jun 1978 | 8 Jan 1980 | | Manually operated pump using hollow flexible member as pumping chamber |
| US4201317 | 28 Jul 1977 | 6 May 1980 | | Finger actuated pump assembly |
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| US4227650 | 17 Nov 1978 | 14 Oct 1980 | Ethyl Products Company | Fluid dispenser and nozzle structure |
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| US4260079 | 25 Jan 1978 | 7 Apr 1981 | The AFA Corporation | Manually operated liquid dispensers |
| US4310107 | 28 Feb 1980 | 12 Jan 1982 | The AFA Corporation | Manually operated, trigger actuated diaphragm pump dispenser |
| US4315582 | 24 Apr 1978 | 16 Feb 1982 | Leeds and Micallef | Universal sequential dispensing pump system free of external check valves and having venting capability |
| US4336895 | 25 Feb 1980 | 29 Jun 1982 | | Finger actuated pump assembly |
| US4373644 | 17 Feb 1981 | 15 Feb 1983 | | Child resistant type trigger actuated pump dispenser |
| US4479593 | 9 Jul 1982 | 30 Oct 1984 | | Pump dispenser with adjustable nozzle |
| US4589573 | 14 Sep 1982 | 20 May 1986 | Canyon Corporation | Head depression type dispenser |
| US5152461 | 1 Oct 1990 | 6 Oct 1992 | | Hand operated sprayer with multiple fluid containers |
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| US5385302 | 21 Oct 1992 | 31 Jan 1995 | Contico | Low cost trigger sprayer |
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| US5411185 | 1 Jun 1994 | 2 May 1995 | The Procter & Gamble Company | Spray pump package employing multiple orifices having an orifice selector system |
| US5425482 | 13 May 1994 | 20 Jun 1995 | Contico International, Inc. | Trigger sprayer |
| US5542581 | 25 Nov 1994 | 6 Aug 1996 | | Dual service sprayer |
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| US6116234 | 1 Feb 1999 | 12 Sep 2000 | IEP Pharmaceutical Devices Inc. | Metered dose inhaler agitator |
| US6168050 | 28 Jan 1999 | 2 Jan 2001 | Guala Dispensing S.p.A. | Hand-operated pump with a trigger, for dispensing liquids |
| US6279784 | 27 Sep 1999 | 28 Aug 2001 | | Trigger activated pump sprayer having a combination dual action spring and fluid chamber |
| US6679687 | 3 Jul 2001 | 20 Jan 2004 | California Institute of Technology | Hydro elastic pump which pumps using non-rotary bladeless and valveless operations |
| US7338646 | 1 Aug 2002 | 4 Mar 2008 | Roteck Limited | Method and apparatus for disinfecting items |
| US7387500 | 20 Jan 2004 | 17 Jun 2008 | California Institute of Technology | Hydro elastic pump which pumps using non-rotary bladeless and valveless operations |
| US7793803 | 3 Jul 2003 | 14 Sep 2010 | Meadwestvaco Calmar Netherlands B.V. | Bellows pump system and method for the use thereof |
| US8220156 | 14 Jan 2011 | 17 Jul 2012 | The Gillette Company | Liquid dispensing hair removal kit |
