Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855116 | Activated coke method of removing nitrogen oxides from exhaust gases | Ekkehard Richter, Hans-Jurgen Schmidt, Karl Knoblauch | 1989-08-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855116 | Activated coke method of removing nitrogen oxides from exhaust gases | Ekkehard Richter, Hans-Jurgen Schmidt, Karl Knoblauch | 1989-08-08 |