Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11365172 | Production plant for producing a chemical product by reacting H-functional reactants with phosgene, and method for operating same with an interruption to production | Juergen Spriewald, Thomas Knauf, Dirk Manzel | 2022-06-21 |
| 11213867 | Method for cleaning phosgene conducting apparatus | Dirk Manzel, Peter Wolf, Udo Boegel | 2022-01-04 |