Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5451034 | Device for the injection of pulverized coal into a blast furnace crucible | Leon Ulveling, Charles Schmit | 1995-09-19 |
| 5123632 | Method for the pneumatic injection of metered quantities of powdered substances into a chamber at a variable pressure | Louis Schmit, Leon Ulveling | 1992-06-23 |