Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886652 | Production of metal carbides | Gopala N. Krishnan, Michael Gusman, David J. Rowcliffe, Hajime Nakano | 1989-12-12 |
| 4830800 | Method of producing a dense refractory silicon nitride (SI.sub.3 N.sub.4) compact with one or more crystalline intergranular phases | Gareth J. Thomas, Timothy R. Dinger | 1989-05-16 |