Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6855192 | Release agent for bituminous material and use thereof | — | 2005-02-15 |
| 5773499 | Preserved and stabilized natural latex, with water-soluble carboxylic acid salts | Henning Umland | 1998-06-30 |