Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32009 | Degassing molten sulfur | Howard Lerner | 1985-10-22 |
| 4423025 | Degassing molten sulfur | Howard Lerner | 1983-12-27 |
| 4313922 | Reducing ash content of molten sulfur | Raul E. Perez | 1982-02-02 |
| 4299811 | Degassing molten sulfur | Howard Lerner | 1981-11-10 |