Issued Patents All Time
Showing 76–100 of 100 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6482999 | Method for improving light olefin selectivity in an oxygenate conversion reaction | Shun C. Fung, James R. Lattner, Richard B. Hall, Hsiang-Ning Sun, Ron G. Searle +1 more | 2002-11-19 |
| 6455749 | Method for increasing light olefin yield by conversion of a heavy hydrocarbon fraction of a product to light olefins | — | 2002-09-24 |
| 6455748 | Protecting catalytic activity of a SAPO molecular sieve | Marcel Janssen, Cornelius W. M. Van Oorschot, Shun C. Fung, Luc R. M. Martens, Wilfried J. Mortier +2 more | 2002-09-24 |
| 6455747 | Method for converting oxygenates to olefins | James R. Lattner, Keith H. Kuechler, David C. Skouby, Hsiang-Ning Sun | 2002-09-24 |
| 6448460 | Maintaining acid catalyst sites in SAPO molecular sieves | Marcel Janssen, Machteld M. Mertens, Cornelius W. M. Van Oorschot, Hsiang-Ning Sun, David Lumgair | 2002-09-10 |
| 6444868 | Process to control conversion of C4+ and heavier stream to lighter products in oxygenate conversion reactions | Peter Ham, Keith H. Kuechler | 2002-09-03 |
| 6441261 | High pressure oxygenate conversion process via diluent co-feed | Keith H. Kuechler, Gary F. Janda, Russell D. Sellen | 2002-08-27 |
| 6440894 | Methods of removing halogen from non-zeolitic molecular sieve catalysts | Luc Martens, Albert E. Schweizer, John K. Pierce | 2002-08-27 |
| 6395674 | Heat treating a molecular sieve and catalyst | Shun C. Fung, Marcel Janssen, Machteld M. Mertens, Albert E. Schweizer, Luc R. M. Martens +4 more | 2002-05-28 |
| 6316683 | Protecting catalytic activity of a SAPO molecular sieve | Marcel Janssen, Cornelius W. M. Van Oorschot, Shun C. Fung, Luc R. M. Martens, Wilfried J. Mortier +2 more | 2001-11-13 |
| 6245703 | Efficient method using liquid water to regenerate oxygenate to olefin catalysts while increasing catalyst specificity to light olefins | Keith H. Kuechler | 2001-06-12 |
| 6225254 | Maintaining acid catalyst sites in sapo molecular sieves | Marcel Janssen, Machteld M. Mertens, Cornelius W. M. Van Oorschot, Hsiang-Ning Sun, David Lumgair | 2001-05-01 |
| 6153552 | Methods for making catalysts | William A. Wachter, Jeffrey T. Elks | 2000-11-28 |
| 6069288 | Process for selectively separating hydrogen, or both hydrogen and carbon monoxide from olefinic hydrocarbons | John Di-Yi Ou, Lawrence G. Daniel | 2000-05-30 |
| 6051746 | Oxygenate conversions using modified small pore molecular sieve catalysts | Hsiang-Ning Sun, Robert Scott Smith | 2000-04-18 |
| 6040264 | Use of alkaline earth metal containing small pore non-zeolitic molecular sieve catalysts in oxygenate conversion | Hsiang-Ning Sun | 2000-03-21 |
| 6023005 | Process for converting oxygenates to olefins using molecular sieve catalysts comprising desirable carbonaceous deposits | James R. Lattner, Hsiang-Ning Sun, Keith H. Kuechler, David C. Skouby | 2000-02-08 |
| 5962762 | Use of transition metal containing small pore molecular sieve catalysts in oxygenate conversion | Hsian-Ning Sun | 1999-10-05 |
| 5952538 | Use of short contact time in oxygenate conversion | David Lumgair, Hsiang-Ning Sun | 1999-09-14 |
| 5907076 | Process for selectively separating hydrogen, or both hydrogen and carbon monoxide from olefinic hydrocarbons | Di Ou, Lawrence G. Daniel | 1999-05-25 |
| 5453561 | Reactive separation process | Ramzi Y. Saleh, Michael Siskin, Glen B. Brons, Richard H. Schlosberg | 1995-09-26 |
| 5336395 | Liquefaction of coal with aqueous carbon monoxide pretreatment | Joanne K. Pabst, William E. Winter, Claude C. Culross, Steve Reynolds | 1994-08-09 |
| 5200063 | Coal hydroconversion process comprising solvent enhanced pretreatment with carbon monoxide | Dan R. Neskora, W. Neal Mitchell, Calude C. Culross, Steve Reynolds, Edward Effron | 1993-04-06 |
| 5151173 | Conversion of coal with promoted carbon monoxide pretreatment | Michael Siskin, Alan R. Katritzky, Glen B. Brons, Steve N. Reynolds, Claude C. Culross +1 more | 1992-09-29 |
| 5043486 | Aquathermolytic cleavage of ethers | Michael Siskin, Glen B. Brons, Ramzi Y. Saleh | 1991-08-27 |