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| US4902270 | 3 Oct 1988 | 20 Feb 1990 | Nalge Company | Centrifuge tube |
| US4941252 | 1 Sep 1988 | 17 Jul 1990 | | Tool for extracting anchor bolt from wall |
| US5149320 | 11 Jan 1991 | 22 Sep 1992 | | Composite anesthetic article and method of use |
| US5322165 | 16 Feb 1993 | 21 Jun 1994 | University of Florida | Sharp instrument encasement system |
| US6065641 | 14 Jul 1998 | 23 May 2000 | Laboratorios Inibsa, S.A. | Cartridge containing two liquids |
| US8220623 | 31 Jan 2007 | 17 Jul 2012 | 3M Innovative Properties Company | Container |
