Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4421641 | Enrichment process by flotation of phosphate-containing ores with carbonated and/or siliceous gangues, by amphoteric collecting agents | Pierre Blazy, Robert Joussemet, Philippe Haicour, Jean C. Tracez | 1983-12-20 |