Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835329 | Heteroaryl substituted hydroxyphenyltriazine uv-absorbers | Dieter Reinehr, Hanspeter Sauter | 2004-12-28 |
| 6800762 | Indolin derivaties as sun protection agents | Helmut Luther | 2004-10-05 |
| 6706930 | Process for the preparation of halogenated hydroxydiphenyl compounds | Armando Di Teodoro, Werner Hölzl, Dieter Reinehr | 2004-03-16 |
| 6596907 | Process for the preparation of 4,4′-dihalogen-o-hydroxydiphenyl compounds | Armando Di Teodoro, Werner Hölzl, Dieter Reinehr | 2003-07-22 |
| 6384284 | Biphenyl compounds substituted by camphor or hydantoin derivatives as sunscreen compositions | Dieter Reinehr, Helmut Luther, Bernd Herzog | 2002-05-07 |
| 6358496 | Indolin derivatives as sun protection agents | Helmut Luther | 2002-03-19 |
| 6215029 | Process for the preparation of halogenated hydroxydiphenyl compounds | Urs Burckhardt, Armando Di Teodoro, Werner Hölzl, Dieter Reinehr, Hanspeter Sauter +1 more | 2001-04-10 |
| 6201000 | Use of selected benzotriazole derivatives for protecting human and animal skin and hair from the harmful effects of UV radiation | Helmut Luther, Dieter Reinehr | 2001-03-13 |
| 6143904 | Color former mixture | Klaus Huber | 2000-11-07 |
| 5681791 | Color former mixture | Klaus Huber | 1997-10-28 |
| 5468855 | Bislactones | — | 1995-11-21 |
| 5395948 | Fluoran color formers | — | 1995-03-07 |
| 5254522 | Pressure-sensitive or heat-sensitive recording material | Peter Mockli, Peter Rohringer | 1993-10-19 |
| 5240897 | Heat-sensitive recording material | Rosalinde Braun | 1993-08-31 |
| 5162550 | Bisphthalide lactones, their preparation and the use thereof in recording materials | Ian J. Fletcher | 1992-11-10 |
| 5149689 | Fluoran color former mixture and use thereof in recording materials | — | 1992-09-22 |
| 5143892 | Chromogenic phthalides | — | 1992-09-01 |
| 5071480 | Fluoran color former mixture and use thereof in recording materials | — | 1991-12-10 |
| 5066814 | 2-dicarboximidefluorane or 3-dicarboximidefluorane compounds | — | 1991-11-19 |
| 5039822 | Chromogenic phthalides | — | 1991-08-13 |
| 5024988 | Pressure-or heat-sensitive recording material | Rox Phaff | 1991-06-18 |
| 5013707 | Pressure- or heat-sensitive recording material | Rox Phaff | 1991-05-07 |
| 4997918 | Benzthiazolium azo dyes | — | 1991-03-05 |
| 4973712 | 2-aralkylaminofluorans, their preparation and the use thereof in recording materials | — | 1990-11-27 |
| 4847378 | Chromogenic polycyclic azamethines | — | 1989-07-11 |