Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5284617 | Process for dealuminizing molten cast iron | Basant L. Tiwari | 1994-02-08 |
| 5240673 | Process for dealuminizing molten cast iron | Basant L. Tiwari | 1993-08-31 |
| 4944313 | Single-use annular mouthpiece | Marna L. Schirmer | 1990-07-31 |
| 4828607 | Replacement of coke in plasma-fired cupola | Shyam V. Dighe, Bradley A. Buczkowski, Walter J. Peck, William H. Provis | 1989-05-09 |
| 4474050 | Foundry coke test apparatus | Craig F. Landefeld | 1984-10-02 |
| 4327743 | Detection of temperature variations over regions of living tissue | — | 1982-05-04 |