Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6756521 | Moisture sensing and indicating system | — | 2004-06-29 |
| 5008473 | Process for purifying propanediol-1,3 | Georg Dambkes, Hanswilhelm Bach | 1991-04-16 |
| 4918247 | Process for the preparation of 2,2-dimethylpropanediol-1,3 | Wolfgang Hofs, Heinz Kalbfell, Franz Thonnessen, Peter Lappe, Helmut Springer | 1990-04-17 |
| 4532354 | Method for purifying N,N-dimethylaminopropylamine | Boy Cornils, Ernst Wiebus | 1985-07-30 |