Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5676877 | Process for producing a magnetic fluid and composition therefor | Stefan Borduz, Lucian Borduz | 1997-10-14 |
| 5656196 | Ferrofluid having improved oxidation resistance | Mayumi Takayama | 1997-08-12 |