Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4956010 | Method of desulphurizing pig-iron | — | 1990-09-11 |
| 4906292 | Composite article having a tubular sheath containing a compacted material, for the treatment of liquid metals, and process for the production of said article | Edmond Vachiery | 1990-03-06 |
| 4863803 | Composite product with a tubular casing for treating molten metal baths | — | 1989-09-05 |
| 4816068 | Composite article having a tubular sheath containing a compacted material, for the treatment of liquid metals, and process for the production of said article | Edmond Vachiery | 1989-03-28 |
| 4708897 | Composite product having a tubular metal casing with a welt-type seam, and a core in powder form, which can be rolled up | — | 1987-11-24 |
| 4486227 | Manufacture of a composite tubular product | Jean-Louis Tranchant, Michel Jehan | 1984-12-04 |
| 4364770 | Manufacture of a composite tubular product | Jean-Louis Tranchant, Michel Jehan | 1982-12-21 |