Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7597898 | Aerosol foam or pump foam product for hair treatment | Susanne Birkel, Michael Franzke, Manuela Hannich | 2009-10-06 |
| 7455832 | Cosmetic preparation in gel form | Susanne Birkel, Juergen Allwohn, Michael Franzke, Birgit Schreiber, Axel Kalbfleisch | 2008-11-25 |
| 7135166 | Hair styling stick containing polyethylene glycols of different molecular weights | Susanne Birkel, Michael Franzke, Bernd Stein, Manuela Hannich | 2006-11-14 |
| 7083810 | Cosmetic agent in the form of a gel | Susanne Birkel, Juergen Allwohn, Michael Franzke, Birgit Schreiber, Axel Kalbfleisch | 2006-08-01 |
| 6716455 | Hair treatment gels containing itaconic acid monoester/acrylate copolymer | Susanne Birkel, Michael Franzke, Silke Niesig | 2004-04-06 |
| 6358493 | Methods of performing cosmetic treatments with gasified solid particles and instant gel preparations containing the gasified solid particles | Susanne Birkel, Karin Steinbrecht, Wolfgang Maurer | 2002-03-19 |
| 6214319 | Aqueous-alcoholic hair fixing composition containing a combination of shellac and synthetic hair fixing polymer | Michael Franzke, Jurgen Schmenger | 2001-04-10 |
| 5587174 | Cosmetic composition for treating skin and hair containing apple wax and methods of making them | G unther Lang, Dieter Hoch, Eugen Konrad, Wolfram Geibel, Thomas Kripp | 1996-12-24 |
| 5037632 | Composition for the strengthening of the hairdo and the care of hair | Paul Gross, Hildegard Henze, Gunther Lang, Liane Stahle | 1991-08-06 |
| 4976952 | Macromolecular, surface-active, quaternary, N-substituted chitosan derivatives as well as cosmetic composition based on these new chitosan derivatives | Gunther Lang | 1990-12-11 |
| 4938950 | Cosmetic composition based upon chitosan and ampholytic copolymerizates, as well as new chitosan/polyampholyte salts | Guenther Lang | 1990-07-03 |
| 4931271 | Cosmetic compostions based upon N-hydroxybutyl-chitosans, N-hydroxybutyl-chitosans as well as processes for the production thereof | Gunther Lang, Eugen Konrad, Gerhard Maresch, Hans-Rudi Lenz | 1990-06-05 |
| 4921949 | Process for making quaternary chitosan derivatives for cosmetic agents | Gunther Lang, Eugen Konrad | 1990-05-01 |
| 4835266 | Cosmetic compositions based upon n-hydroxypropyl-chitosans, new n-hydroxypropyl-chitosans, as well as processes for the production thereof | Gunther Lang, Gerhard Maresch, Eugen Konrad, Hans-Rudi Lenz, Jurgen Titze | 1989-05-30 |
| 4822598 | Cosmetic agent on the basis of quaternary chitosan derivatives, novel quaternary chitosan derivatives as well as processes for making same | Gunther Lang, Eugen Konrad | 1989-04-18 |
| 4780310 | Cosmetic compositions based upon N-hydroxypropyl-chitosans, new N-hyroxypropyl-chitosans, as well as processes for the production thereof | Guther Lang, Gerhard Maresch, Eugen Konrad, Hans-Rudi Lenz, Jurgen Titze | 1988-10-25 |
| 4772689 | Quaternary hydroxy-propyl-substituted chitosan derivatives, cosmetic compositions based thereon and processes for the production thereof | Gunther Lang, Eugen Konrad | 1988-09-20 |
| 4772690 | Quaternary hydroxyethyl-substituted chitosan derivatives, cosmetic compositions based thereon and processes for the production thereof | Gunther Lang, Eugen Konrad | 1988-09-20 |
| 4528283 | Cosmetic composition based upon chitosan derivatives, new chitosan derivatives as well as processes for the production thereof | Gunther Lang, Eugen Konrad | 1985-07-09 |