Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883844 | Substituted styrylaza epoxy resins | Robert E. Hefner, Jr., Jimmy D. Earls | 1989-11-28 |
| 4851483 | Styrylaza vinyl esters | Robert E. Hefner, Jr. | 1989-07-25 |
| 4804640 | Method of forming silicon and aluminum containing dielectric film and semiconductor device including said film | Grzegorz Kaganowicz, Alfred C. Ipri | 1989-02-14 |