Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5055032 | A burner with a flame retention device | Gerhard Stenzel, Manfred Weid | 1991-10-08 |
| 4941345 | Method and apparatus for the measurement of gas properties | Robert L. Hess, Karl H. Hillringhaus | 1990-07-17 |
| 4859171 | Method and apparatus of operating pre-mixed burners | Robert L. Hess | 1989-08-22 |
| 4659306 | Method of and system for determining the ratio between the oxygen-carrying gas content and the fuel content of a mixture | Manfred Weid, Eugen Brockmann | 1987-04-21 |
| 4582476 | Burner | Hans Sommers, Manfred Weid | 1986-04-15 |
| 4530656 | Burner | Hans Sommers, Manfred Weid | 1985-07-23 |
| 4439135 | Process for the operation of premixture burners and burner for carrying out the process | Hans Sommers, Manfred Weid | 1984-03-27 |