Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6008359 | Piperidine antioxidants and compositions therewith for preventing the fading of artificial hair dye | Janusz Jachowicz, Ratan K. Chaudhuri | 1999-12-28 |
| 5922310 | Compositions for preventing the fading of artificial hair dye | Ratan K. Chaudhuri, Janusz Jachowicz | 1999-07-13 |
| 5830441 | Photostable UV absorbent containing A-cyano cinnamyl moiety | Chenjie Wang, Ratan K. Chaudhuri, Janusz Jachowicz, Frank M. Miksza | 1998-11-03 |