Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808784 | High frequency dispersing device in a microwave oven | — | 1989-02-28 |
HK
Heungchan Ko
Overall (1989): #106,692 of 140,708Top 80%
1
Patents 1989