Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11000839 | Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalyst | Hye Kyung Cho Timken, Jeff William Johns, Viorel Duma, John V. Heyse | 2021-05-11 |
| 10017837 | Metallurgical extraction technique to recover platinum group metals from a filter cake | Hye Kyung Cho Timken | 2018-07-10 |
| 9956553 | Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalyst | Hye Kyung Cho Timken, Jeff William Johns, Viorel Duma, John V. Heyse | 2018-05-01 |
| 9809870 | Process for separating and recovering metals | Louis Joseph Nordrum, Alexander E. Kuperman | 2017-11-07 |
| 9580770 | Process for preparing a spent catalyst for precious metals recovery | Hye Kyung Cho Timken, Philip Ian Cuspard | 2017-02-28 |
| 8834725 | Method for treating acid mine drainage | Alexander E. Kuperman, Michael Dubrovsky | 2014-09-16 |
| 8815184 | Process for separating and recovering metals | Louis Joseph Nordrum, Alexander E. Kuperman | 2014-08-26 |
| 8815185 | Recovery of vanadium from petroleum coke slurry containing solubilized base metals | Lawrence Paul Zestar | 2014-08-26 |
| 8778828 | Hydroprocessing catalysts and methods for making thereof | Oleg Mironov, Alexander E. Kuperman, Julie Chabot, Shuwu Yang, Ling Jiao +2 more | 2014-07-15 |
| 8628735 | Process for recovering metals from coal liquefaction residue containing spent catalysts | — | 2014-01-14 |
| 8236169 | Systems and methods for producing a crude product | Joseph V. Nguyen, Axel Brait, Julie Chabot, Bo Kou, Erin Maris +1 more | 2012-08-07 |
| 7846404 | Process for separating and recovering base metals from used hydroprocessing catalyst | John Stiksma, Roman Berezowsky | 2010-12-07 |
| 7837960 | Process for separating and recovering base metals from used hydroprocessing catalyst | John Stiksma, Roman Berezowsky | 2010-11-23 |
| 7658895 | Process for recovering base metals from spent hydroprocessing catalyst | — | 2010-02-09 |