Average Co-Inventor Count = 3.16
ph-index = 3
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. Basf Aktiengesellschaft (2 from 10,754 patents)
2. Emtec Magnetics Gmbh (1 from 41 patents)
3 patents:
1. 5873543 - Winding hub for information carriers in tape form
2. 4706813 - Cuboid container for articles and hinge and pivot-limiting means therefor
3. 4530475 - Magnetic tape cassette with windows