Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5172025 | Glass sealant of spark plug insulator for use in an internal combustion engine | Takafumi Oshima | 1992-12-15 |
HO
Hiroyasu Ogura
Overall (All Time): #3,865,681 of 4,157,543Top 95%
1
Patents All Time