Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5709739 | Release agents for hydraulic binders | Stephan Heck, Lothar Friesenhagen, Guenther Demmering, Horst-Dieter Komp, Michael Koehler +2 more | 1998-01-20 |
| 5389113 | Mixtures of fatty alkyl lower alkyl esters having improved low-temperature stability | Guenther Demmering, Karl Schmid, Frank Bongardt | 1995-02-14 |
| 4895681 | Fatty acid esters of polyglycerol polyglycol ethers, their production and use | Klaus Herrmann | 1990-01-23 |