|
| US3940994 | 1 Aug 1974 | 2 Mar 1976 | Varian Associates | High pressure sample injection apparatus and method |
| US4002070 | 26 Feb 1975 | 11 Jan 1977 | E. I. Du Pont de Nemours and Company | Sample injection system |
| US4051397 | 8 Aug 1975 | 27 Sep 1977 | Minnesota Mining and Manufacturing Company | Two sensitivity level kinetic sensor |
| US4119120 | 29 Nov 1976 | 10 Oct 1978 | Beckman Instruments, Inc. | Fluid switch |
| US4688436 | 16 Apr 1986 | 25 Aug 1987 | Association pour la Recherche et le Developpement des Methodes et Processus Industrielles (A.R.M.I.N.E.S.) | Automatic pressurized fluid micro-sampling and injection device |
| US4846005 | 5 Aug 1987 | 11 Jul 1989 | Baxter International Inc. | Set with attachable sample cell |
| US4900321 | 22 Dec 1988 | 13 Feb 1990 | Baxter International Inc. | Set with integrally formed sample cell |
| US5101671 | 1 Oct 1990 | 7 Apr 1992 | | Compressed gas sampling device |
| US5116330 | 15 Feb 1991 | 26 May 1992 | | Sample extraction system |
| US8173070 | 18 Jan 2005 | 8 May 2012 | Waters Technologies Corporation | Sample injector system for liquid chromatography |