Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888317 | Catalyst-agglomerate bodies encapsulated in a structure and method for their production | Irwin M. Lachman, Raja R. Wusirika | 1989-12-19 |
| 4876227 | Reaction sintered boride-oxide-silicon nitride for ceramic cutting tools | — | 1989-10-24 |