Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6146550 | Electrical resistance heating element for an electric furnace and process for manufacturing such a resistance element | Marianne Le Boulch, Thierry Chartier, Jean-Marc Laurent, François Valdivieso | 2000-11-14 |
| 4404045 | Surface-boronized pieces | Francois H. J. Thevenot, Julian H. Driver, Jean-Paul Lebrun | 1983-09-13 |
| 4348980 | Apparatus for the boronizing of pieces made of metal or cermet and surface-bornished pieces | Francois H. J. Thevenot, Julian H. Driver, Jean-Paul Lebrun | 1982-09-14 |
| 4289545 | Process for the boronizing of pieces made of metal or cermet | Francois H. J. Thevenot, Julian H. Driver, Jean-Paul Lebrun | 1981-09-15 |