Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4983219 | Technique for forming silicon carbide coated porous filters | Derek E. Tyler, Harvey P. Cheskis | 1991-01-08 |
| 4972899 | Method and apparatus for casting grain refined ingots | — | 1990-11-27 |
| 4772395 | Silicon carbide coated porous filters | Derek E. Tyler, Harvey P. Cheskis | 1988-09-20 |
| 4708740 | Technique for forming silicon carbide coated porous filters | Derek E. Tyler, Harvey P. Cheskis | 1987-11-24 |
| 4601460 | Technique for removing impurities from a copper melt | Derek E. Tyler, Harvey P. Cheskis | 1986-07-22 |
| 4537627 | Technique for removing impurities from a copper melt | Derek E. Tyler, Harvey P. Cheskis | 1985-08-27 |
| 4533388 | Technique for removing iron-rich components from a copper melt | Derek E. Tyler, Harvey P. Cheskis | 1985-08-06 |