Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11181412 | Gas meter contamination filtering device | Christian Haag, Tobias Kirsten | 2021-11-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11181412 | Gas meter contamination filtering device | Christian Haag, Tobias Kirsten | 2021-11-23 |