Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7262294 | Photochromatic pyrano-1,3-oxazinonaphthalene derivatives | William Giroldini, Luciana Crisci | 2007-08-28 |
| 6605658 | Stabilizing mixtures for organic polymers comprising a pyrazolone, an organic phosphite or phosphonite and a hindered phenol | Fabio Broussard, Daniele Girelli, Maria Lucia Wis, Carlo Neri | 2003-08-12 |
| 6414057 | Photochromatic compounds, process for their preparation and their use in polymeric materials | Luciana Crisci, William Giroldini, Maria Lucia Wis | 2002-07-02 |
| 5688846 | Spiro-pyranic compounds endowed with photochromic characteristics | Pietro Allegrini, Nereo Nodari, Luciana Crisci | 1997-11-18 |
| 5543533 | Photochromic products and method for their preparation | Pietro Allegrini, Nereo Nodari, Luciana Crisci | 1996-08-06 |
| 5532361 | Spiro-pyranic compounds endowed with photochromic characteristics | Pietro Allegrini, Nereo Nodari, Luciana Crisci | 1996-07-02 |
| 5242624 | Stabilizing mixture for compounds having a photochromatic activity | Pietro Allegrini, Luciana Crisci | 1993-09-07 |
| 4826755 | Process of photoetching of superficial coatings based on polymeric materials | Fabio Garbassi, Ernesto Occhiello | 1989-05-02 |
| 4447304 | Production of carbonyl fluoride | Clive Willis, Peter A. Hackett | 1984-05-08 |
| 4388242 | Method of production of vitamin-D | Clive Willis, Peter A. Hackett | 1983-06-14 |