Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841099 | Electrically insulating polymer matrix with conductive path formed in situ | Arthur J. Epstein, Joan R. Ewing | 1989-06-20 |
| 4835807 | Cleaning brush | — | 1989-06-06 |
JS
Joseph A. Swift
Overall (1989): #23,417 of 140,708Top 20%
2
Patents 1989