Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7022358 | Collagen membrane made from porcine skin | Rainer Dorstewitz, Lothar Schlosser, Josef Anton Böhni, Peter Geistlich | 2006-04-04 |
| 6752834 | Membrane for in guided tissue regeneration | Peter Geistlich, Lothar Schlosser | 2004-06-22 |
| 6676969 | Resorbable extracellular matrix for reconstruction of cartilage tissue | Peter Geistlich, Myron Spector | 2004-01-13 |
| 6482240 | Method of making a collagen membrane from porcine skin | Rainer Dorstewitz, Lothar Schlosser, Josef Anton Böhni, Peter Geistlich | 2002-11-19 |
| 6326029 | Resorbable extracellular matrix for reconstruction of cartilage tissue | Peter Geistlich, Myron Spector | 2001-12-04 |
| 5837278 | Resorbable collagen membrane for use in guided tissue regeneration | Peter Geistlich, Philip J. Boyne | 1998-11-17 |
| 5028695 | Process for the manufacture of collagen membranes used for hemostasis, the dressing of wounds and for implants | Ernst Janzen, Gunter Ruttgers | 1991-07-02 |
| 4320201 | Method for making collagen sponge for medical and cosmetic uses | Alexander Berg | 1982-03-16 |
| 4232123 | Method for making water-soluble hydrolyzates of keratinaceous materials | Klaus Braeumer, Alexander Berg, Rolf Monsheimer, Ernst Pfleiderer | 1980-11-04 |
| 4220723 | Enzymatic treatment of proteinaceous animal waste products | Alexander Berg, Rolf Monsheimer, Ernst Pfleiderer | 1980-09-02 |
| 4220724 | Method for treating raw materials containing collagen | Alexander Berg, Rolf Monsheimer, Ernst Pfleiderer | 1980-09-02 |
| 4185011 | Process for the production of collagen fibers | Alexander Berg, Joachim Kuhn | 1980-01-22 |