Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7964586 | Method for obtaining a natural mixture of conjugated equine estrogens | Kirsten Wilbrand, Sabine Banschbach | 2011-06-21 |
| 7524833 | Method and apparatus for concentrating and stabilizing conjugated estrogens from mare urine | Juergen Ahnsorge, Ivan Ban | 2009-04-28 |
| 7220733 | Separation of cresol from mares' urine | Kirsten Wilbrand, Kerstin Woltmann | 2007-05-22 |
| 7081451 | Method and apparatus for concentrating and stabilizing conjugated estrogens from mare urine | Juergen Ahnsorge, Ivan Ban | 2006-07-25 |
| 7074325 | Device for concentrating and stabilizing conjugated estrogens from mare urine | Juergen Ahnsorge, Ivan Ban | 2006-07-11 |
| 6300468 | Process for producing porous polymer globules | Karl-Heinz Bretz, Helmut Derleth, Philippe Francois | 2001-10-09 |
| 5814624 | Method for obtaining estrogens from pregnant mare urine by solid-phase extraction | Ivan Ban, Friederich Borchers, Henning Heinemann | 1998-09-29 |
| 5723454 | Method for obtaining estrogens from pregnant mare urine by solid phase extraction on a semi-polar adsorber resin | Ivan Ban, Henning Heinemann, Gerhard Mechtold | 1998-03-03 |