Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 | Andre Ezis, 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 . | Andre Ezis, Krishnamoorthy Subramanian | 1983-08-30 |
| 4352308 | Method of cutting cast iron with Si.sub.3 N.sub.4 composite cutting tool material | Krishnamoorthy Subramanian, Andre Ezis, David Moskowitz | 1982-10-05 |
| 4323325 | ethod of using Si.sub.3 N.sub.4.Y.sub.2 O.sub.3.SiO.sub.2 ceramic system for machine cast iron | Krishnamoorthy Subramanian, Andre Ezis | 1982-04-06 |
| 4286905 | Method of machining steel, malleable or nodular cast iron | — | 1981-09-01 |
| 4227842 | Method of using Si.sub.3 N.sub.4.Y.sub.2 O.sub.3.SiO.sub.2 ceramic system for machining cast iron | Krishnamoorthy Subramanian, Andre Ezis | 1980-10-14 |