Issued Patents All Time
Showing 1–25 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12187677 | Process for the removal of carbon monoxide from non-catalytic oxidative dehydrogenation product streams | Gary A. Sawyer, John A. Sofranko | 2025-01-07 |
| 11767276 | Process for the removal of carbon monoxide from non-catalytic oxidative dehydrogenation product streams | Gary A. Sawyer, John A. Sofranko | 2023-09-26 |
| 11447433 | Enhanced oxygen transfer agent systems for oxidative dehydrogenation of hydrocarbons | John A. Sofranko, Royce Macwan, Elena Y. Chung | 2022-09-20 |
| 11046892 | Oxidative cracking of hydrocarbons | John A. Sofranko, Elena Y. Chung, William K. Wang | 2021-06-29 |
| 10968149 | Enhanced oxygen transfer agent systems for oxidative dehydrogenation of hydrocarbons | John A. Sofranko, Royce Macwan, Elena Y. Chung | 2021-04-06 |
| 10604460 | Oxidative cocracking of hydrocarbons to olefins | John A. Sofranko, Royce Macwan, Elena Y. Chung | 2020-03-31 |
| 6498259 | Direct epoxidation process using a mixed catalyst system | Roger A. Grey | 2002-12-24 |
| 6468496 | Process for producing hydrogen peroxide | Roger A. Grey | 2002-10-22 |
| 6307073 | Direct epoxidation process using a mixed catalyst system | — | 2001-10-23 |
| 6008388 | Epoxidation process | Ralph M. Dessau, Andrew P. Kahn, Roger A. Grey, Jennifer D. Jewson | 1999-12-28 |
| 5939569 | Epoxidation process | Roger A. Grey | 1999-08-17 |
| 5698719 | Oxirane production | Anne Mae Gaffney, Rangasamy Pitchai, Andrew P. Kahn | 1997-12-16 |
| 5462971 | Process for treating polyether polyols | Anne Mae Gaffney | 1995-10-31 |
| 5192809 | Process for reclaiming a thermoset polymer | Anne Mae Gaffney, David W. Leyshon, Glenn E. Cozzone, John A. Sofranko | 1993-03-09 |
| 5107050 | Olefin skeletal isomerization | Anne Mae Gaffney | 1992-04-21 |
| 5107001 | Propylene oxide production | Morris Gelb, David W. Leyshon, John A. Sofranko | 1992-04-21 |
| 5026935 | Enhanced production of ethylene from higher hydrocarbons | David W. Leyshon, John A. Sofranko | 1991-06-25 |
| 5026936 | Enhanced production of propylene from higher hydrocarbons | David W. Leyshon, John A. Sofranko | 1991-06-25 |
| 4988830 | Propylene oxide production | Morris Gelb, David W. Leyshon, John A. Sofranko | 1991-01-29 |
| 4912081 | Boron-promoted reducible metal oxides | John A. Sofranko, Robert G. Gastinger | 1990-03-27 |
| 4861936 | Boron-promoted reducible metal oxides and methods of their use | John A. Sofranko, Robert G. Gastinger | 1989-08-29 |
| 4795842 | Methane conversion process | Anne Mae Gaffney, John A. Sofranko | 1989-01-03 |
| 4795849 | Methane conversion process | Ann Gaffney, John A. Sofranko | 1989-01-03 |
| 4777313 | Boron-promoted reducible metal oxides and methods of their use | John A. Sofranko, Robert G. Gastinger | 1988-10-11 |
| 4774380 | Alkali promoted manganese oxide compositions containing zirconium | John A. Sofranko | 1988-09-27 |