Average Co-Inventor Count = 4.00
ph-index = 2
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. Essilor International (compagnie Generale D'optique) (1 from 719 patents)
2. Transitions Optical, Inc. (1 from 214 patents)
2 patents:
1. 6136968 - Homoazaadamantane spirooxazines and their use in the field of ophthalmic
2. 6019914 - Photochromic spirooxazine compounds, their use in the field of