Average Co-Inventor Count = 2.77
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. Merck Patent Gmbh (2 from 2,937 patents)
2. Merck Patent Gesellschaft MIT Beschrankter Haftung (1 from 1,248 patents)
3 patents:
1. 9611390 - Pigments with an iron silicate-containing coating
2. 9605155 - Gold pigment
3. 8642161 - Optically variable security element