Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795547 | Process for contacting particulate solids with a fluid | — | 1989-01-03 |
PB
Peter H. Barnes
Overall (1989): #70,197 of 140,708Top 50%
1
Patents 1989