Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4329203 | Multiple stage combustion means for heating slot type coke ovens | Howard H. Shih | 1982-05-11 |
| 4314888 | Zone control of lean gas underfiring for coke ovens | Philip Corbman | 1982-02-09 |