|
| US3940972 | 28 Jun 1974 | 2 Mar 1976 | Phillips Petroleum Company | Chromatographic separation of olefins |
| US3960498 | 1 Aug 1974 | 1 Jun 1976 | Instrumentation Laboratory, Inc. | Electrochemical analysis system |
| US4153517 | 22 May 1978 | 8 May 1979 | Shell Oil Company | Detecting trace lead in gasolines |
| US4352780 | 9 Jun 1980 | 5 Oct 1982 | Fiatron Systems, Inc. | Device for controlled injection of fluids |
| US4888295 | 2 Jul 1986 | 19 Dec 1989 | The United States of America as represented by the United States Department of Energy | Portable system and method combining chromatography and array of electrochemical sensors |
| US5106756 | 18 Dec 1989 | 21 Apr 1992 | The United States of America as represented by the United States Department of Energy | Method and system for gathering a library of response patterns for sensor arrays |
| US5498279 | 13 May 1994 | 12 Mar 1996 | Chromatofast | High speed gas chromatography system for analysis of polar organic compounds |
| US5847291 | 21 Feb 1997 | 8 Dec 1998 | Tekmar Company | Air sampler with trap |
