Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7071348 | Process for the purification of olefinically unsaturated nitriles | Milind V. Kantak, Oliver Wahnschafft | 2006-07-04 |
| 6982342 | Ammoxidation of carboxylic acids to a mixture of nitriles | Michael J. Seely, Christos Paparizos | 2006-01-03 |
| 6843890 | Purification and recovery of acetonitrile from waste solvent acetonitrile | — | 2005-01-18 |
| 6793776 | Operation of heads column | — | 2004-09-21 |
| 6780289 | Process for the purification and recovery of acetonitrile | — | 2004-08-24 |
| 6667020 | Ammoxidation of a mixture of ketones to acetonitrile and HCN | Michael J. Seely, Dev D. Suresh | 2003-12-23 |
| 6413485 | Ammoxidation of a mixture of ketones to acetonitrile and HCN | Michael J. Seely, Dev D. Suresh | 2002-07-02 |
| 6326508 | Purification and recovery of acetonitrile | Richard Lee Wappelhorst, Paul Jacobson | 2001-12-04 |
| 6296739 | Operation of heads column | — | 2001-10-02 |
| 6204407 | Ammoxidation of a mixture of alcohols to a mixture of nitriles to acetonitrile and HCN | Michael J. Seely, Dev D. Suresh | 2001-03-20 |
| 6107509 | Process for the recovery of acrylonitrile and methacrylontrile | Michael Keith Hagans, Patrick Michael Conrath, Donald Eugene Meihls | 2000-08-22 |
| 6054603 | Acrylonitrile recovery process | — | 2000-04-25 |
| 6002040 | Reduced pressure drop in acrylonitrile absorber via direct contact spray heat exchange | Jeffrey Earle Rinker, Paul Trigg Wachtendorf, Vincent Little | 1999-12-14 |
| 5959134 | Recovery of organics from process flare header | Kenneth P. Keckler | 1999-09-28 |
| 5869730 | Oxidant reduction by manipulation and/or treatment of aqueous acrylonitrile process streams | Anne M. Graham, Daniel G. Lee | 1999-02-09 |