Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4694092 | Partially hydrophilicized silica gel and process for producing the same | Yasuyo Takahata | 1987-09-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4694092 | Partially hydrophilicized silica gel and process for producing the same | Yasuyo Takahata | 1987-09-15 |