Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5525134 | Silicon nitride ceramic and cutting tool made thereof | Robert D. Nixon | 1996-06-11 |
| 5505751 | Cutting tool | Elizabeth R. Billman, Bernard North | 1996-04-09 |
| 5476025 | Method of using a ceramic cutting tool with chip control | Craig W. Beeghly, Deepak P. Ahuja, Kenneth L. Niebauer | 1995-12-19 |
| 5397370 | Cutting tool | Elizabeth R. Billman, Bernard North | 1995-03-14 |
| 5382273 | Silicon nitride ceramic and cutting tool made thereof | Robert D. Nixon | 1995-01-17 |
| 5370716 | High Z sialon and cutting tools made therefrom and method of using | Joyce L. Swiokla, Robert D. Nixon | 1994-12-06 |
| 5350258 | Ceramic cutting tool with chip control | Craig W. Beeghly, Deepak P. Ahuja, Kenneth L. Niebauer | 1994-09-27 |
| 5330296 | Ceramic cutting tool with chip control | Craig W. Beeghly, Deepak P. Ahuja, Kenneth L. Niebauer | 1994-07-19 |
| 5141367 | Ceramic cutting tool with chip control | Craig W. Beeghly, Deepak P. Ahuja, Kenneth L. Niebauer | 1992-08-25 |
| 5059564 | Alumina-titanium carbide-silicon carbide composition | Elizabeth R. Billman | 1991-10-22 |
| 5024976 | Alumina-zirconia-silicon carbide-magnesia ceramic cutting tools | Elizabeth R. Billman | 1991-06-18 |
| 4965231 | Alumina-zirconia-silicon carbide-magnesia compositions and articles made therefrom | Elizabeth R. Billman | 1990-10-23 |
| 4960735 | Alumina-zirconia-silicon carbide-magnesia ceramics | Elizabeth R. Billman | 1990-10-02 |
| 4959331 | Alumina-zirconia-silicon carbide-magnesia cutting tools | Elizabeth R. Billman | 1990-09-25 |
| 4959332 | Alumina-zirconia-carbide whisker reinforced cutting tools | Elizabeth R. Billman | 1990-09-25 |
| 4956315 | Whisker reinforced ceramics and a method of clad/hot isostatic pressing same | Joyce L. Swiokla, Elizabeth R. Billman | 1990-09-11 |
| 4925458 | Cutting tool | Elizabeth R. Billman | 1990-05-15 |
| 4913936 | Method of surface alloying sialon articles | Joyce L. Swiokla | 1990-04-03 |
| 4880755 | Sialon cutting tool composition | — | 1989-11-14 |
| 4852999 | Cutting tool | Elizabeth R. Billman, Bernard North | 1989-08-01 |
| 4826791 | Silicon carbide-alpha prime sialon beta prime sialon | Klaus-Markus Peters, Joyce L. Swiokla | 1989-05-02 |
| 4820663 | Whisker reinforced ceramic and a method of clad/hot isostatic pressing same | Joyce L. Swiokla, Elizabeth R. Billman | 1989-04-11 |
| 4801510 | Alumina coated silcon carbide whisker-alumina composition | Elizabeth R. Billman | 1989-01-31 |