Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6362305 | Method for producing formaldehyde from methanol | Elke Schweers, Thomas Kaiser, Michael Rosenberg, Rolf Schulz | 2002-03-26 |
| 6232507 | Method for non-oxidative production of formaldehyde from methanol | Thomas Kaiser, Elke Schweers | 2001-05-15 |
| 6229053 | Method for purification of formaldehyde, use thereof and plastics produced therewith | Werner Sievers, Elke Schweers | 2001-05-08 |
| 6121467 | Separating off trioxane from gaseous mixtures with formaldehyde | Hagen Kniep, Elke Schweers, Ioannis Nicolaou, Dirk Scheid | 2000-09-19 |