Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8222474 | Fractional extraction of butadiene | Allen David Hood, Jr., Scott A. Smith, Solon B. Williams | 2012-07-17 |
| 7718841 | Extractive distillation | Robert J. Haynal, Allen David Hood, Jr., Solon B. Williams | 2010-05-18 |
| 7348466 | Solvent extraction | Solon B. Williams, Byron B. Unterbrink | 2008-03-25 |
| 5962728 | Isocyanate residue purification | Robert W. Mason, Farhad Fadakar, Larry K. Butler, Majid Keyvani | 1999-10-05 |