Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12270090 | PGM converting process and jacketed rotary converter | Steven Daryl McCullough | 2025-04-08 |
| 10648059 | Jacketed rotary converter and PGM converting process | Steven Daryl McCullough | 2020-05-12 |
| 10513750 | PGM converting process with staged slagging | Steven Daryl McCullough | 2019-12-24 |
| 10513751 | Integrated PGM converting process | Steven Daryl McCullough | 2019-12-24 |
| 10501823 | Converting process with slag separation and recycle | Steven Daryl McCullough | 2019-12-10 |
| 10472700 | Converting process with partial pre-oxidation of PGM collector alloy | Steven Daryl McCullough | 2019-11-12 |
| 10435767 | Low-flux converting process for PGM collector alloy | Steven Daryl McCullough | 2019-10-08 |