Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6632333 | Device for separating metal deposit from a cathode | Ola Eriksson, Revill Wayne Armstrong, Kei Shibata, Yasuo Suga, Jan Anders Haag +1 more | 2003-10-14 |
| 4402740 | Dual fuel burner for metal melting furnaces | David F. Arp | 1983-09-06 |
| 4375352 | Method for melting a non-ferrous metal charge with liquid fuel | Milton E. Berry | 1983-03-01 |
| 4326700 | Dual fuel burner for metal melting furnaces | David F. Arp | 1982-04-27 |
| 4301997 | Continuous copper melting furnace | Milton E. Berry | 1981-11-24 |
| 4243209 | Multiple level refractory hearth for vertical shaft metal melting furnaces | David F. Arp | 1981-01-06 |
| 4239191 | Apparatus for controlling combustion in a metal melting furnace | Milton E. Berry | 1980-12-16 |
| 4211555 | Method of controlling combustion in a metal melting furnace | Milton E. Berry | 1980-07-08 |