Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810396 | Process for preparing overbased calcium sulfonates | William J. Powers, III | 1989-03-07 |
TJ
Tze-Chi Jao
Overall (1989): #47,211 of 140,708Top 35%
1
Patents 1989