Average Co-Inventor Count = 4.43
ph-index = 9
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Transitions Optical, Inc. (14 from 213 patents)
2. Johnson and Johnson Vision Care, Inc. (8 from 882 patents)
22 patents:
1. 12304991 - Photochromic article
2. 11874434 - Ophthalmic devices comprising photochromic materials with reactive substituents
3. 11518751 - Photochromic indeno-fused naphthopyran compounds with reduced temperature dependence
4. 11256002 - Ophthalmic devices comprising photochromic materials with reactive substituents
5. 10501477 - Photochromic thienochromene compounds
6. 10197707 - Ophthalmic devices comprising photochromic materials with reactive sub substituents
7. 9465234 - Photochromic materials having extended pi-conjugated systems and compositions and articles including the same
8. 9139552 - Indeno-fused naphthopyrans having ethylenically unsaturated groups
9. 9097916 - Photochromic materials having extended pi-conjugated systems and compositions and articles including the same
10. 9073838 - Method of making indeno-fused naphthol materials
11. 9052438 - Ophthalmic devices comprising photochromic materials with reactive substituents
12. 9034219 - Photochromic compounds and compositions
13. 9028728 - Photochromic materials that include indeno-fused naphthopyrans
14. 8920928 - Photochromic compounds and compositions
15. 8765978 - Method of making indeno-fused naphthol materials