Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889540 | Apparatus for determination of slag tap blockage | Clifford C. Segerstrom, Pieter J. Schuurman, Gunter K. Eckstein | 1989-12-26 |
| 4859214 | Process for treating syngas using a gas reversing chamber | Clifford C. Segerstrom, Adrianus J. Ooms, Bernardus H. Mink, Ulrich Premel, Leszek Gawloski | 1989-08-22 |
| 4836146 | Controlling rapping cycle | Paul F. Russell, Egon L. Doering, Clifford C. Segerstrom, Gerd Harenslak, Matheus M. van Kessel | 1989-06-06 |
| 4834778 | Determination of slag tap blockage | Clifford C. Segerstrom, Pieter J. Schuurman, Gunter K. Eckstein | 1989-05-30 |