Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6794552 | Hydrocarbon hydrogenation catalyst and process | Tin-Tack Peter Cheung, Darin B. Tiedtke, Marvin M. Johnson | 2004-09-21 |
| 6417136 | Hydrocarbon hydrogenation catalyst and process | Tin-Tack Peter Cheung, Darin B. Tiedtke, Marvin M. Johnson | 2002-07-09 |
| 6037502 | Etherification process | Gary R. Patton, Robert O. Dunn, Marvin M. Johnson | 2000-03-14 |
| 5370848 | Sulfur absorbents | Randall A. Porter | 1994-12-06 |
| 5358921 | Selective removal of hydrogen sulfide over a zinc oxide and silica absorbing composition | Dennis R. Kidd, Donald H. Kubicek, Paul F. Schubert | 1994-10-25 |
| 5310717 | Sulfur absorbents | Randall A. Porter | 1994-05-10 |
| 5268152 | Sulfur absorbents and process for removing sulfur from fluid streams | Ted H. Cymbaluk, Dennis R. Kidd, Gerhard P. Nowack | 1993-12-07 |
| 5250089 | Process for removing hydrogen sulfide from hydrocarbon gases using a cogelled hydrated zinc oxide-hydrated silica sorbent | Dennis R. Kidd | 1993-10-05 |
| 5248489 | Selective removal of hydrogen sulfide over a zinc oxide and silica absorbing composition | Dennis R. Kidd, Donald H. Kubicek, Paul F. Schubert | 1993-09-28 |
| 5179063 | Hydrotalcite composition | Jesse R. Harris, Randall A. Porter | 1993-01-12 |
| 5178843 | Removal of hydrogen sulfide from fluid streams | Dennis R. Kidd | 1993-01-12 |
| 5174919 | Sulfur absorbents and process for removing sulfur from fluid streams | Ted H. Cymbaluk, Dennis R. Kidd, Gerhard P. Nowack | 1992-12-29 |
| 5130288 | Cogelled mixtures of hydrated zinc oxide and hydrated silica sulfur sorbents | Dennis R. Kidd | 1992-07-14 |
| 5102854 | Adsorbent compositions for the removal of hydrogen sulfide from fluid streams | Dennis R. Kidd | 1992-04-07 |
| 5071817 | Dehydrogenation catalyst | John H. Kolts | 1991-12-10 |
| 5064626 | Trialkyl arsine sorbents | Marvin M. Johnson, Patricia A. Tooley, Gerhard P. Nowack, Ted H. Cymbaluk | 1991-11-12 |
| 4956515 | Dehydrogenation process and catalyst | John H. Kolts | 1990-09-11 |
| 4911904 | Catalytic oxidation of carbon monoxide | John H. Kolts | 1990-03-27 |
| 4902660 | Catalyst for oxidation of carbon monoxide | John H. Kolts | 1990-02-20 |
| 4829041 | Composition of matter and method for conversion of C.sub.3 and C.sub.4 hydrocarbons | John H. Kolts | 1989-05-09 |
| 4705769 | Composition of matter for conversion of C.sub.3 and C.sub.4 hydrocarbons | John H. Kolts | 1987-11-10 |
| 4705772 | Composition of matter and method for conversion of C3 and C4 hydrocarbons | John H. Kolts | 1987-11-10 |
| 4621162 | Method for conversion of C.sub.3 and C.sub.4 hydrocarbons to olefinic products | John H. Kolts | 1986-11-04 |
| 4620051 | Dehydrogenation and cracking of C.sub.3 and C.sub.4 hydrocarbons to less saturated hydrocarbons | John H. Kolts | 1986-10-28 |
| 4620052 | Dehydrogenation and cracking of C.sub.3 and C.sub.4 hydrocarbons | John H. Kolts | 1986-10-28 |