Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6134921 | Directly cooled, side fired forehearth | Philip D. Perry, Roland F. Pimm | 2000-10-24 |
| 5944864 | Directly cooled, side fired forehearth | Philip D. Perry, Roland F. Pimm | 1999-08-31 |
| 5718741 | Directly cooled, side fired forehearth | Philip D. Perry, Roland F. Pimm | 1998-02-17 |