Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4495058 | Process for generating superheated steam using retorted solids | Lawrence Paul Zestar, Corey A. Bertelsen | 1985-01-22 |
| 4457837 | Efficiency addition of ammonia to petroleum fractionation units | — | 1984-07-03 |
| 4452761 | Method and apparatus for restraining lifting of radial reactor centerpipes | — | 1984-06-05 |
| 4433707 | Method and apparatus for level loading of vessels using catalyst oriented packing | — | 1984-02-28 |
| 4421723 | Method and apparatus for supporting radial reactor centerpipes to accommodate thermal cycling | — | 1983-12-20 |
| 4374094 | Method and apparatus for uniform flow through radial reactor centerpipes | — | 1983-02-15 |
| 4295936 | Fractionation apparatus providing improved heat recovery from bottom stream | — | 1981-10-20 |