Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861447 | Process for reducing corrosive impurities in sulfolane used for extracting aromatic hydrocarbons | George C. Blytas | 1989-08-29 |
RK
Robert Knott
Overall (1989): #62,588 of 140,708Top 45%
1
Patents 1989