Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5637116 | Leucoindigo preparatations in granule form | Peter Miederer, Peter Schultz | 1997-06-10 |
| 5151523 | Preparation of 2-methylbenzoxazole | Heinz Saukel, Wolfgang Hoffmann, Josef Koenig | 1992-09-29 |
| 5109137 | Purification of indigo | Reinhold Kohlhaupt, Lothar Haas, Guenter Engelhardt, Walter Bieg, Matthias Fankhaenel | 1992-04-28 |
| 5075458 | Purification of indigo | Reinhold Kohlhaupt, Lothar Haas, Guenter Engelhardt, Walter Bieg, Matthias Fankhaenel | 1991-12-24 |
| 4515985 | Preparation of chlorinated phenoxyalkanoic acids | Gerd Husslein, Gerhard Hamprecht, Karl-Heinz Koenig, Walter Boehm | 1985-05-07 |
| 4506089 | Preparation of methyl m-nitrobenzoate | Alfred Hackenberger, Manfred Patsch | 1985-03-19 |