Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11161224 | Chain sprocket tensioner wrench apparatus | Robert Valenzuela | 2021-11-02 |
| 4333761 | Method for direct reduction of iron using high sulfur gas | William A. Ahrendt | 1982-06-08 |
| 4316739 | Method for producing molten iron | John C. Scarlett | 1982-02-23 |
| 4306903 | Method for reducing particulate iron oxide to molten iron with solid reductant and oxy-fuel burners | Bruce G. Kelly, David C. Meissner | 1981-12-22 |
| 4270739 | Apparatus for direct reduction of iron using high sulfur gas | William A. Ahrendt | 1981-06-02 |
| 4251267 | Method for direct reduction of metal oxide to a hot metallized product in solid form | Robert M. Escott | 1981-02-17 |
| 4248408 | Method and apparatus for reducing particulate iron oxide to molten iron with solid reductant and oxy-fuel burners | Bruce G. Kelley, David C. Meissner | 1981-02-03 |
| 4235425 | Impact bed gasifier-melter | John C. Scarlett | 1980-11-25 |
| 4234169 | Apparatus for the direct reduction of iron and production of fuel gas using gas from coal | John C. Scarlett | 1980-11-18 |
| 4225340 | Method for the direct reduction of iron using gas from coal | John C. Scarlett | 1980-09-30 |
| 4205830 | Apparatus for the direct reduction of iron using gas from coal | Ullrich-Horst Buskies, John C. Scarlett | 1980-06-03 |
| 4201571 | Method for the direct reduction of iron and production of fuel gas using gas from coal | John C. Scarlett | 1980-05-06 |
| 4195821 | Apparatus for reducing particulate iron oxide to molten iron with solid reductant | David C. Meissner | 1980-04-01 |
| 4188022 | Hot discharge direct reduction furnace | Robert M. Escott | 1980-02-12 |