Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5298157 | Coal depolymerization utilizing hard acid/soft base | George M. Kramer, Edwin R. Ernst | 1994-03-29 |
| 5294349 | Coal depolymerization and hydroprocessing | George M. Kramer, Edwin R. Ernst, Gopal H. Singhal, Peter S. Maa | 1994-03-15 |