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| US5114406 | 18 Jan 1990 | 19 May 1992 | Wilhelm Haselmeier GmbH & Co. | Injection device for injection, especially self-administered injection, of medicament, including mechanisms for nulling and for selecting dosage, especially for use with multi-dose ampules |
| US6056162 | 28 Oct 1998 | 2 May 2000 | Spectronics Corporation | Self-contained service tool for adding fluorescent leak detection dye into systems operating with pressurized fluids |
| US7673819 | 26 Jun 2006 | 9 Mar 2010 | Battelle Memorial Institute | Handheld sprayer with removable cartridge and method of using same |
| US8083161 | 19 Jan 2010 | 27 Dec 2011 | Battelle Memorial Institute | Handheld sprayer with removable cartridge and method of using same |
