Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5475162 | Acid functionalized organically-bridged polysilsesquioxanes as catalysts for acid catalyzed reactions | Timothy A. Brandvold, Jennifer S. Holmgren | 1995-12-12 |
| 5466835 | Titanosilicate as an epoxidation catalyst for olefins | Laszlo T. Nemeth, Richard R. Jones | 1995-11-14 |
| 5371154 | Process for forming acid functionalized organically-bridged polysilsesquioxanes | Timothy A. Brandvold, Jennifer S. Holmgren | 1994-12-06 |
| 5354875 | Epoxidation of olefins using a titania-supported titanosilicate | Laszlo T. Nemeth, Richard R. Jones | 1994-10-11 |
| 5350879 | Transesterification using metal oxide solid solutions as the basic catalyst | Dusan J. Engel, Peter K. Nickl | 1994-09-27 |
| 5296632 | Continuous reduction of a hindered nitro moiety in aliphatic nitro polyamines | Dusan J. Engel, Steven R. Paeschke | 1994-03-22 |
| 5233097 | Oxidation of aromatics to hydroxyaromatics using aluminosilicates containing framework titanium | Laszlo T. Nemeth, Eric M. Hyatt | 1993-08-03 |
| 5196603 | Process for decomposing peroxide impurities in a teritary butyl alcohol feedstock using an iron (II) compound | Chwu-Ching Jan | 1993-03-23 |
| 5124492 | Process for decomposing peroxide impurities in a tertiary butyl alcohol feedstock using an iron (II) compound | Chwu-Ching Jan | 1992-06-23 |
| 4973782 | Preparation of 2,2-diethyltoluene | Dusan J. Engel | 1990-11-27 |
| 4699812 | Imparting stain resistance to certain fibers | Stephen Munk | 1987-10-13 |
| 4581336 | Surface-modified electrodes | Louis J. DeFilippi | 1986-04-08 |
| 4536301 | Enhanced oil recovery | Raymond J. Swedo | 1985-08-20 |
| 4520218 | Production of dialkylated aromatics | Roy C. Berg, Bipin V. Vora | 1985-05-28 |
| 4511654 | Production of high sugar syrups | Ronald P. Rohrbach, Mary J. Maliarik | 1985-04-16 |
| 4503269 | Isomerization of cresols | Dusan J. Engel, James P. Shoffner | 1985-03-05 |
| 4501675 | Enhanced oil recovery | Raymond J. Swedo | 1985-02-26 |
| 4499300 | 4-Vinylbenzeneacetic acid | Dusan J. Engel | 1985-02-12 |
| 4459186 | Electrochemical oxidation of alkyl aromatic compounds | Mark Halter, David W. House | 1984-07-10 |
| 4414120 | Enhanced oil recovery | Raymond J. Swedo | 1983-11-08 |
| 4411802 | Enhanced oil recovery | George W. Lester | 1983-10-25 |
| 4402825 | Method for the removal of metal alkaryl sulfonate from hydrocarbons | Lee Hilfman, Russell W. Johnson | 1983-09-06 |
| 4354904 | Electrochemical oxidation of alkyl aromatic compounds | Mark Halter, David W. House | 1982-10-19 |
| 4323714 | Alkylation of hydroxy-substituted aromatic compounds | Dusan J. Engel | 1982-04-06 |
| 4323715 | Preparation of mono-tertiary butylhydroquinone | Dusan J. Engel | 1982-04-06 |