Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854946 | Method for treating blast furnace gas and apparatus for carrying out that method | Willem Kat | 1989-08-08 |
| 4376043 | Process of treating dust containing zinc and lead and derived in an iron or steel making process | Willem Kat | 1983-03-08 |