Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12378123 | Chromium-free, iron-based catalyst for water gas shift reaction and methods of use thereof | Jian-Ping Shen, Pradeepkumar Sharma, David Denton | 2025-08-05 |
| 12258527 | Continuous desulfurization process based on metal oxide-based regenerable sorbents | Raghubir P. Gupta | 2025-03-25 |
| 11724938 | Methods for production of hydrogen | Shaojun Zhou, Raghubir P. Gupta, John R. Carpenter | 2023-08-15 |
| 11491457 | Zinc oxide based sorbent and process for preparing same | Jian-Ping Shen, Jason S. Norman, Raghubir P. Gupta | 2022-11-08 |
| 11225618 | Continuous desulfurization process based on metal oxide-based regenerable sorbents | Raghubir P. Gupta | 2022-01-18 |
| 10414649 | Integrated system and method for removing acid gas from a gas stream | David Denton, Raghubir P. Gupta, Vijay Gupta, Himanshu Paliwal | 2019-09-17 |
| 10286383 | Mixed metal iron oxides and uses thereof | Jian-Ping Shen, Marty Lail, Paul D. Mobley, Jason S. Norman, Laura Douglas +1 more | 2019-05-14 |
| 10265677 | Regenerable sorbent for carbon dioxide removal | Jian-Ping Shen, Luke Coleman, Marty Lail, Raghubir P. Gupta | 2019-04-23 |
| 9951233 | Environmentally friendly coalescing agents | Michael N. Mang | 2018-04-24 |
| 9944857 | Catalytic biomass pyrolysis process | David C. Dayton, Raghubir P. Gupta, Atish Kataria, Jian-Ping Shen | 2018-04-17 |
| 9884313 | Mixed metal iron oxides and uses thereof | Jian-Ping Shen, Marty Lail, Paul D. Mobley, Jason S. Norman, Laura Douglas +1 more | 2018-02-06 |
| 9808783 | Regenerable sorbent for carbon dioxide removal | Jian-Ping Shen, Luke Coleman, Marty Lail, Raghubir P. Gupta | 2017-11-07 |
| 8696792 | Process and system for removing impurities from a gas | Gunnar Henningsen, Teddy M. Knowlton, John FINDLAY, Jerry Neal Schlather | 2014-04-15 |
| 7956006 | Process for preparing zinc oxide-based sorbents | Santosh K. Gangwal, Raghubir P. Gupta | 2011-06-07 |
| 7923410 | Regenerable sorbents for removal of sulfur from hydrocarbons and processes for their preparation and use | Santosh K. Gangwal, Raghubir P. Gupta | 2011-04-12 |
| 7682423 | Zinc-oxide-based sorbents and processes for preparing and using same | Santosh K. Gangwal, Raghubir P. Gupta | 2010-03-23 |
| 7291259 | Process for desulfurizing hydrocarbon fuels and fuel components | Raghubir P. Gupta | 2007-11-06 |
| 7067093 | Attrition resistant, zinc titanate-containing, reduced sulfur sorbents and methods of use thereof | Albert A. Vierheilig, Raghubir P. Gupta | 2006-06-27 |
| 6951635 | Zinc oxide-based sorbents and processes for preparing and using same | Santosh K. Gangwal, Raghubir P. Gupta | 2005-10-04 |
| 6812189 | Attrition resistant, zinc titanate-containing, reduced sulfur sorbents | Albert A. Vierheilig, Raghubir P. Gupta | 2004-11-02 |
| 6306793 | Metal sulfide initiators for metal oxide sorbent regeneration | Raghubir P. Gupta | 2001-10-23 |
| 5914288 | Metal sulfide initiators for metal oxide sorbent regeneration | Raghubir P. Gupta | 1999-06-22 |