Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6004895 | Pigmented silicon nitride | Chienchung James Shih | 1999-12-21 |
| 5723392 | In-situ grown whisker reinforced ceramics | C. James Shih | 1998-03-03 |
| 5585314 | Method of making in-situ grown whisker reinforced ceramics | C. James Shih | 1996-12-17 |
| 5477722 | Can tooling components | Chester J. Dziedzic, Roblee L. Talbott | 1995-12-26 |
| 5396788 | Can tooling components | Chester J. Dziedzic, Roblee L. Talbott | 1995-03-14 |
| 5372978 | Monolithic, fully dense silicon carbide material, method of manufacturing and end uses | — | 1994-12-13 |
| 5358685 | Monolithic, fully dense silicon carbide mirror and method of manufacturing | — | 1994-10-25 |
| 5354536 | Monolithic, fully dense silicon carbide material, method of manufacturing and end uses | — | 1994-10-11 |
| 5302561 | Monolithic, fully dense silicon carbide mirror and method of manufacturing | — | 1994-04-12 |
| 5302328 | Making hot pressed silicon nitride by use of low density reaction bonded body | — | 1994-04-12 |
| 4946630 | Making hot pressed silicon nitride by use of low density reaction bonded body | — | 1990-08-07 |
| 4848984 | Method of making reaction bonded/hot pressed Si.sub.3 N.sub.4 for use as a cutting tool | Elaine C. Beckwith | 1989-07-18 |
| 4632793 | Method of fabricating hot pressed silicon nitride billets | Elaine C. Beckwith, Warren Copple | 1986-12-30 |
| 4623498 | Method of improving quality of hot pressed Si.sub.3 N.sub.4 bodies | Elaine C. Beckwith | 1986-11-18 |
| 4600547 | Method of preparing powder ingredients by dry milling for subsequent consolidation | Elaine C. Beckwith | 1986-07-15 |
| 4554117 | Method of forming dense ceramic bodies | Warren Copple | 1985-11-19 |
| 4510107 | Method of making densified Si.sub.3 N.sub.4 /oxynitride composite with premixed silicon and oxygen carrying agents | Howard D. Blair | 1985-04-09 |
| 4508671 | Method of making an anisotropic silicon nitride comprising object by use of higher density and fully reacted preforms | — | 1985-04-02 |
| 4501723 | Method of making yttrium silicon oxynitrides | Howard D. Blair | 1985-02-26 |
| 4496503 | Method of making a densified silicon nitride/oxynitride composite | Elaine C. Beckwith, Howard D. Blair | 1985-01-29 |
| 4489032 | Method of hot pressing reactive materials | Warren Copple | 1984-12-18 |
| 4477402 | Method of making silicon nitride comprising objects | — | 1984-10-16 |
| 4443394 | Method of making a silicon nitride body from the Y.sub.2 O.sub.3 /SiO.sub.2 .sub.3 N.sub.4 /Al.sub.2 O.sub.3 | — | 1984-04-17 |
| 4434238 | Ceramic cutting tool formed from Si.sub.3 N.sub.4 --Y.sub.2 O.sub.3 --SiO.sub.2 and method of making | Shyam K. Samanta, Krishnamoorthy Subramanian | 1984-02-28 |
| 4401617 | Ceramic cutting tool formed from Si.sub.3 N.sub.4 -Y.sub.2 O.sub.3 -SiO.sub . | Shyam K. Samanta, Krishnamoorthy Subramanian | 1983-08-30 |