Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6592832 | Method for producing highly pure lithium salts | Holger Friedrich, Bernd Leutner | 2003-07-15 |
| 6576788 | METHOD FOR PRODUCING MIXTURES CONSISTING OF DIPHENYLMETHANE DIISOCYANATES AND POLYPHENYLENE-POLYMETHYLENE-POLYISOCYANATES CONTAINING A REDUCED AMOUNT OF CHLORINATED SECONDARY PRODUCTS AND WITH A REDUCED IODINE COLOR INDEX | Ulrich Penzel, Volker Scharr, Dieter Starosta, Hilmar Boesel, Eckhard Ströfer +8 more | 2003-06-10 |
| 6525223 | Preparation of secondary amines from nitriles | Michael Hullmann, Arthur Hohn, Frank Funke, Frank Ohlbach, Till Gerlach | 2003-02-25 |