Average Co-Inventor Count = 5.55
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. Rodenstock Gmbh (3 from 118 patents)
3 patents:
1. 8182087 - Pair of spectacle lenses for anisometropia
2. 7771047 - Error-tolerant progressive glass design
3. 7740355 - Device and method for determining optical parameters