Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6613949 | Oxygen enrichment process for air based gas phase oxidations which use metal oxide redox catalysts | Matthew Lincoln Wagner, Donald Walter Welsh Kirkwood | 2003-09-02 |
| 5646305 | Oxygen enrichment process for air based gas phase oxidations which use metal oxide redox catalysts | Matthew Lincoln Wagner, Donald Walter Welsh Kirkwood | 1997-07-08 |
| 5356600 | Oxygen enrichment method and system | Lawrence M. Litz, Thomas John Bergman, Jr. | 1994-10-18 |
| 4867918 | Gas dispersion process and system | Lawrence M. Litz, Thomas John Bergman, Jr. | 1989-09-19 |
| 4278462 | Process for upgrading iron ore pellets | — | 1981-07-14 |
| 4185984 | Process for producing glass in a rotary furnace | — | 1980-01-29 |