Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6003221 | Metal matrix composites containing electrical insulators | Ralph R. Sawtell, Mosur K. Premkumar | 1999-12-21 |
| 5775403 | Incorporating partially sintered preforms in metal matrix composites | M. K. Premkumar, Ralph R. Sawtell, Frankie E. Phelps, James A. DerKacy | 1998-07-07 |
| 5746267 | Monolithic metal matrix composite | Ralph R. Sawtell, Warren H. Hunt, Jr., H. Robert Baumgartner, Eric Streicher, Michael F. Ehman | 1998-05-05 |
| 5616421 | Metal matrix composites containing electrical insulators | Ralph R. Sawtell, Mosur K. Premkumar | 1997-04-01 |
| 5570502 | Fabricating metal matrix composites containing electrical insulators | Ralph R. Sawtell, M. K. Premkumar | 1996-11-05 |
| 5361678 | Coated ceramic bodies in composite armor | Brijmohan J. Roopchand, Douglas Edward Marinaro, Mary E. Hyland | 1994-11-08 |
| 5259436 | Fabrication of metal matrix composites by vacuum die casting | Ralph R. Sawtell, Warren H. Hunt, Jr., H. Robert Baumgartner, Eric Streicher, Michael F. Ehman | 1993-11-09 |
| 5255731 | Partitioned receptacle for distributing molten metal from a spout to form and ingot | — | 1993-10-26 |
| 5207974 | Partitioned receptacle for distributing molten metal from a spout to form an ingot | — | 1993-05-04 |
| 5194202 | Formation of ceramic-metal composite by pressure casting and oxidation sintering | Robert A. Marra, Thomas B. Gurganus, P. Victor Kelsey | 1993-03-16 |
| 5085945 | Production of metal matrix composites reinforced with polymer fibers | Que-Tsang Fang, Caroline Wei-Berk | 1992-02-04 |
| 4772320 | Metal recovery from dross | Jan H. L. van Linden, Gerald E. Carkin | 1988-09-20 |