Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820494 | Solids feeding device and system | Herman N. Woebcke | 1989-04-11 |
| 4814067 | Particulate solids cracking apparatus and process | Richard C. Norton | 1989-03-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820494 | Solids feeding device and system | Herman N. Woebcke | 1989-04-11 |
| 4814067 | Particulate solids cracking apparatus and process | Richard C. Norton | 1989-03-21 |