Average Co-Inventor Count = 4.21
ph-index = 4
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 Gesellschaft MIT Beschrankter Haftung (3 from 1,248 patents)
2. Merck Patent Gmbh (1 from 2,937 patents)
4 patents:
1. 7303622 - Lustrous black interference pigments
2. 6719838 - Colored interference pigments
3. 6302926 - Preparations of monodisperse spherical oxide particles
4. 5846310 - Coated spherical SiO.sub.2 particles