Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4422879 | Paper sizing agent and process for the preparation thereof | Guenter Poppel, Horst Schuermann | 1983-12-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4422879 | Paper sizing agent and process for the preparation thereof | Guenter Poppel, Horst Schuermann | 1983-12-27 |