|
| US4348888 | 1 oct. 1980 | 14 sept. 1982 | National Research Development Corporation | Explosimeter |
| US4530233 | 18 juil. 1983 | 23 juil. 1985 | Air Products and Chemicals, Inc. | Method and apparatus for distinguishing between different gas or gas mixtures using a flow tube |
| US4555931 | 1 avr. 1983 | 3 déc. 1985 | Horiba, Ltd. | Apparatus for measuring or controlling the separation ratio of gas |
| US4565086 | 20 janv. 1984 | 21 janv. 1986 | Baker Drilling Equipment Company | Method and apparatus for detecting entrained gases in fluids |
| US5569838 | 6 mars 1995 | 29 oct. 1996 | Testo GmbH & Co. | Process and device for measuring a gas medium with a chemical sensor |
| US6770250 | 11 oct. 2002 | 3 août 2004 | Cooper Environmental Services | Apparatus and methods for removing mercury from fluid streams |
| US7572419 | 21 oct. 2003 | 11 août 2009 | Cooper Environmental Services LLC | Apparatus and methods for removing mercury from fluid streams |
