Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10011541 | Recovery of ethylene from methanol to olefins process | Stephen De Haan, Daniel Lee Baumbach | 2018-07-03 |
| 9422210 | Recovery of ethylene from methanol to olefins process | Stephen De Haan, Daniel Lee Baumbach | 2016-08-23 |
| 8952211 | Absorber demethanizer for FCC process | Stephen J. Stanley, Stephen De Haan | 2015-02-10 |
| 8445740 | Absorber demethanizer for FCC process | Stephen J. Stanley, Stephen De Haan | 2013-05-21 |
| 8399728 | Absorber demethanizer for methanol to olefins process | Stephen De Haan | 2013-03-19 |
| 4275183 | Hydrophilic polymers and contact lenses therefrom | — | 1981-06-23 |