Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5850866 | Heat treatment of metal castings and in-furnace sand reclamation | — | 1998-12-22 |
| 5829509 | Integrated system and process for heat treating castings and reclaiming sand | — | 1998-11-03 |
| 5738162 | Terraced fluidized bed | — | 1998-04-14 |
| 5565046 | Heat treatment of metal castings and integrated sand reclamation | Paul M. Crafton | 1996-10-15 |
| 5551998 | Method and apparatus for heat treating metal castings | Paul M. Crafton | 1996-09-03 |
| 5531423 | Method and apparatus for heat treating metal castings | Paul M. Crafton | 1996-07-02 |
| 5439045 | Method of heat treating metal castings, removing cores, and incinerating waste gasses | — | 1995-08-08 |
| 5354038 | Heat treatment of metal castings and in-furnace sand reclamation | — | 1994-10-11 |
| 5350160 | Method and apparatus for heat treating metal castings | Paul M. Crafton | 1994-09-27 |
| 5294094 | Method and apparatus for heat treating metal castings | Paul M. Crafton | 1994-03-15 |