Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889540 | Apparatus for determination of slag tap blockage | Jacob H. Stil, Pieter J. Schuurman, Gunter K. Eckstein | 1989-12-26 |
| 4859213 | Interchangeable quench gas injection ring | — | 1989-08-22 |
| 4859214 | Process for treating syngas using a gas reversing chamber | Jacob H. Stil, Adrianus J. Ooms, Bernardus H. Mink, Ulrich Premel, Leszek Gawloski | 1989-08-22 |
| 4852997 | Slag water bath process | Charles V. Sternling, Hans-Wolfgang Luke, Hsi L. Wu | 1989-08-01 |
| 4836146 | Controlling rapping cycle | Paul F. Russell, Egon L. Doering, Jacob H. Stil, Gerd Harenslak, Matheus M. van Kessel | 1989-06-06 |
| 4834778 | Determination of slag tap blockage | Jacob H. Stil, Pieter J. Schuurman, Gunter K. Eckstein | 1989-05-30 |