Average Co-Inventor Count = 4.00
ph-index = 1
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. Rodenstock Gmbh (2 from 118 patents)
2 patents:
1. 12111519 - Eyeglass lens, use of an eyeglass lens, and process for manufacturing an eyeglass lens
2. 6853471 - Photochromic synthetic resin object with permanently increased contrast