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. Merck Patent Gmbh (1 from 2,943 patents)
2. Merck Patent Gesellschaft MIT (1 from 47 patents)
3. Merck Kgaa (1 from 28 patents)
3 patents:
1. 7105586 - Optical retardation firm
2. 6899929 - Anisotropic polymer layer
3. 6291035 - Optical retardation film