Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818577 | Synthetic liner capable of resisting chemical attack and high temperature | — | 1989-04-04 |
DO
Daivd T. Ou-Yang
Overall (1989): #122,140 of 140,708Top 90%
1
Patents 1989