Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883783 | Composition of matter for conversion of hydrocarbons | Jin S. Yoo, Cecelia A. Radlowski | 1989-11-28 |
| 4735705 | Composition of matter and process useful for conversion of hydrocarbons | Jin S. Yoo, Cecelia A. Radlowski | 1988-04-05 |
| 4522937 | Preparative process for alkaline earth metal, aluminum-containing spinels | Jin S. Yoo, John A. Karch, Richard F. Poss | 1985-06-11 |
| 4471070 | Preparative process for alkaline earth metal, aluminum-containing spinels | Kristine S. Siefert, Jin S. Yoo | 1984-09-11 |
| 4448584 | Process for removing sulfur from coal | George P. Masologites, Jui-Yuan Sun, Jin S. Yoo | 1984-05-15 |
| 4317713 | In situ aluminum passivation process | Jin S. Yoo, John A. Karch | 1982-03-02 |
| 4295858 | Process for removing sulfur from coal | Jui-Yuan Sun, 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 | Jin S. Yoo, John A. Karch, Jui-Yuan Sun | 1981-10-06 |
| 4272250 | Process for removal of sulfur and ash from coal | Jui-Yuan Sun, Nestor J. Troncoso | 1981-06-09 |
| 4270927 | Process for removal of sulfur and ash from coal | Jui-Yuan Sun, Nestor J. Troncoso | 1981-06-02 |
| 4270926 | Process for removal of sulfur and ash from coal | Jui-Yuan Sun, Lloyd A. Baillie | 1981-06-02 |
| 4267032 | Demetallization process for a conversion catalyst | Jin S. Yoo, John A. Karch, Jui-Yuan Sun | 1981-05-12 |
| 4261699 | Process for removal of sulfur and ash from coal | Jui-Yuan Sun, Jin S. Yoo, George P. Masologites | 1981-04-14 |
| 4255156 | Process for removal of sulfur and ash from coal | Jui-Yuan Sun, Jin S. Yoo, George P. Masologites | 1981-03-10 |
| 4249910 | Process for removing sulfur from coal | George P. Masologites, Jui-Yuan Sun, Jin S. Yoo | 1981-02-10 |
| 4243550 | Catalyst demetallization with a reductive SO.sub.2 wash | Jin S. Yoo, John A. Karch, Jui-Yuan Sun | 1981-01-06 |
| 4234452 | High pressure oxygen aqueous phase catalyst demetallization | Jin S. Yoo, Jui-Yuan Sun, John A. Karch | 1980-11-18 |
| 4224038 | Process for removing sulfur from coal | George P. Masologites, Jin S. Yoo, John A. Karch | 1980-09-23 |
| 4204840 | Process for removing sulfur from coal | Jin S. Yoo, John A. Karch | 1980-05-27 |
| 4198291 | Float-sink separation of coal with liquid SO.sub.2 | Jin S. Yoo | 1980-04-15 |
| 4197090 | Process for removing sulfur from coal | Jin S. Yoo, John A. Karch | 1980-04-08 |