Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6380275 | Production of polyurethane foams and of foamed thermoplastic synthetic resins | Lothar Zipfel | 2002-04-30 |
| 6303667 | Foaming agents containing liquid carbon dioxide | — | 2001-10-16 |
| 6080799 | Mixtures containing 1,1,1,3,3 pentafluorobutane | Lothar Zipfel | 2000-06-27 |