Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5741434 | Leather oiling preparations and their use | Wolfgang Ritter, Hans-Dieter Sitz, Emil Ruscheinsky | 1998-04-21 |
| 5728313 | Leather oiling compositions and their use | Wolfgang Ritter, Emil Ruscheinsky, Stefanie Ortanderl | 1998-03-17 |
| 5683611 | Preparations for the oiling of leather | Fredi Wolter, Guenter Uphues, Gilbert Schenker | 1997-11-04 |
| 5567343 | New leather oiling preparations and their use | Wolfgang Ritter, Hans-Dieter Sitz, Emil Ruscheinsky | 1996-10-22 |
| 5525120 | Degreasing process | Alfred Meffert, Klaus Herrmann, Wolfgang Prinz, Fredi Wolter | 1996-06-11 |
| 5514368 | Process for the production of hydrophilicized triglycerides | Frank Wangemann, Hans-Christian Raths | 1996-05-07 |
| 5501707 | Aqueous dispersions of new amphiphilic co-oligomers for the washing- and cleaning-resistant oiling of leather and skins and their use | Ludwig Schieferstein, Joachim Conradi, Emil Ruscheinsky | 1996-03-26 |
| 5489389 | New leather oiling preparations and their use | Wolfgang Ritter, Emil Ruscheinsky, Stefanie Ortanderl | 1996-02-06 |
| 5476517 | Use of guerbet alcohols for preventing fatty spew on leather | Emil Ruscheinsky, Fredi Wolter | 1995-12-19 |
| 5468255 | Use of nonionic organic dialkyl compounds for preventing fatty spew on leather | Emil Ruscheinsky, Fredi Wolter | 1995-11-21 |
| 5468892 | Process for the production of an aluminum triformate solution containing alkali metal and/or alkaline earth metal, highly concentrated aluminum triformate solutions containing alkali and/or alkaline earth metal, and their use | Loert de Riese-Meyer | 1995-11-21 |
| 5409501 | Dilutable aluminum triformate tanning agents in the form of highly concentrated, storable aqueous solutions and their use | Jochen Hieber, Loert de Riese-Meyer, Christine Schroeder | 1995-04-25 |