Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5962708 | Process for preparation of highly concentrated free-flowing aqueous solutions of betaines | Ingo Hamann, Hans-Jurgen Kohle | 1999-10-05 |
| 5681972 | Process for preparing highly concentrated, free-flowing aqueous solutions of betaines | Ingo Hamann, Hans-Jurgen Kohle | 1997-10-28 |
| 5464565 | Process for the preparation of highly concentrated free-flowing aqueous solutions of betaines | Ingo Hamann, Hans-Jurgen Kohle | 1995-11-07 |
| 5364542 | Fabric softener rinsing agents | Horst Birkhan, Hans-Juergen Kohle, Joachim Welgand | 1994-11-15 |
| 5254271 | Ammonium compounds, preparation thereof and use thereof as cleaning agent, cosmetic raw material and softener, in particular as final-rinse fabric softner | Ingo Hamann, Elke Hohn, Hans-Jurgen Kohle, Joachim Weigand | 1993-10-19 |
| 5180508 | Fabric softener rinsing agents | Horst Birkhan, Hans-Juergen Kohle, Joachim Weigand | 1993-01-19 |