Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5902910 | Weak acid process for producing dinitrotoluene | William Joseph Mazzafro, Mark Shedric Simpson, Richard Van Court Carr | 1999-05-11 |
| 5275701 | Process for purification and concentration of sulfuric acid | William Joseph Mazzafro, Philip Taylor | 1994-01-04 |