Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5071633 | Method of improving handling characteristics of froth of elemental sulfur particles | Horst Hesse, Sonet Vermaire, Sandra R. Wootton | 1991-12-10 |
| 4921682 | Process for removing hydrogen sulphide from gas streams | Mark Dry, Flemming H. Dressler, Horst Hesse, Sonet Vermaire | 1990-05-01 |