Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877581 | Catalyst for dewaxing hydrocarbon feedstock | Nai Y. Chen | 1989-10-31 |
| 4819831 | Droplet generating apparatus | Gary J. Green, Frederick L. Dryer | 1989-04-11 |
| 4808296 | Process for dewaxing hydrocarbon feedstock | Nai Y. Chen | 1989-02-28 |