Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE42775 | Isotropic pitch-based materials for thermal insulation | Irwin C. Lewis, Ching-Feng Chang | 2011-10-04 |
| 7150837 | Isotropic pitch-based materials for thermal insulation | Irwin C. Lewis, Ching-Feng Chang | 2006-12-19 |
| 6800364 | Isotropic pitch-based materials for thermal insulation | Irwin C. Lewis, Ching-Feng Chang | 2004-10-05 |
| 6214158 | High temperature carbonaceous cement | Irwin C. Lewis, Richard T. Lewis | 2001-04-10 |
| 5019426 | Topical treatment for sealing carbon and graphite surfaces | James B. Noe | 1991-05-28 |
| 5002981 | High strength carbonaceous cement | — | 1991-03-26 |
| 4844740 | High coking value binder system | — | 1989-07-04 |
| 4726995 | Oxidation retarded graphite or carbon electrode and method for producing the electrode | — | 1988-02-23 |