Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4766155 | Process for producing alcohols | Erek J. Erekson | 1988-08-23 |
| 4448584 | Process for removing sulfur from coal | George P. Masologites, Jin S. Yoo, Emmett H. Burk, Jr. | 1984-05-15 |
| 4295858 | Process for removing sulfur from coal | Emmett H. Burk, Jr., Jin S. Yoo, George P. Masologites | 1981-10-20 |
| 4293403 | Catalyst demetallization by converting the metal poisons to a sulfur containing metal compound having a defined low amount of sulfur | Emmett H. Burk, Jr., Jin S. Yoo, John A. Karch | 1981-10-06 |
| 4272250 | Process for removal of sulfur and ash from coal | Emmett H. Burk, Jr., Nestor J. Troncoso | 1981-06-09 |
| 4270927 | Process for removal of sulfur and ash from coal | Emmett H. Burk, Jr., Nestor J. Troncoso | 1981-06-02 |
| 4270926 | Process for removal of sulfur and ash from coal | Emmett H. Burk, Jr., Lloyd A. Baillie | 1981-06-02 |
| 4267032 | Demetallization process for a conversion catalyst | Emmett H. Burk, Jr., Jin S. Yoo, John A. Karch | 1981-05-12 |
| 4261699 | Process for removal of sulfur and ash from coal | Emmett H. Burk, Jr., Jin S. Yoo, George P. Masologites | 1981-04-14 |
| 4255156 | Process for removal of sulfur and ash from coal | Emmett H. Burk, Jr., Jin S. Yoo, George P. Masologites | 1981-03-10 |
| 4249910 | Process for removing sulfur from coal | George P. Masologites, Jin S. Yoo, Emmett H. Burk, Jr. | 1981-02-10 |
| 4243550 | Catalyst demetallization with a reductive SO.sub.2 wash | Emmett H. Burk, Jr., Jin S. Yoo, John A. Karch | 1981-01-06 |
| 4234452 | High pressure oxygen aqueous phase catalyst demetallization | Emmett H. Burk, Jr., Jin S. Yoo, John A. Karch | 1980-11-18 |