Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5023055 | Flow tester | — | 1991-06-11 |
| 5000919 | Testing tube construction for testing gases which are dissolved in liquids and a method of making the same | — | 1991-03-19 |
| 5000920 | Device for the heat treatment of gaseous test samples | Wolfgang Bather | 1991-03-19 |
| 4992738 | Device for the measuring of gas, vapor or aerosol fractions of a measured gas | Wolfgang May | 1991-02-12 |
| 4904449 | Colorimetric gas measuring device | — | 1990-02-27 |
| 4800067 | Device for detecting gases which must be treated before testing | Wolfgang May | 1989-01-24 |